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Terms containing diaphragm | all forms | exact matches only
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tech.accelerometer diaphragm加速表膜盒
tech.accelerometer diaphragm加速表隔膜
tech.accelerometer diaphragm加速计膜盒
tech.adjustable diaphragm可调隔仓板
tech.adjustable diaphragm可调膜片
tech.aneroid diaphragm无液气压计膜片
tech.annular diaphragm环状光圈
tech.anti-reflection diaphragm拦杂光光栏
tech.anti-seep diaphragm防渗心墙
tech.anti-seep diaphragm刚性防渗心墙
tech.anti-seep diaphragm截水环
tech.anti-seep diaphragm防渗层
tech.anti-seepage diaphragm截水环
tech.aperture of diaphragm光阑孔径
tech.aperture of the diaphragm光圈
tech.asbestos diaphragm electrolytic cell石棉隔膜电解槽
tech.automatic diaphragm自动光圈
tech.automatic diaphragm cone自膜式圆锥分级机
tech.beam diaphragm束光阑
tech.blade of diaphragm光阑叶片
tech.blade-shaped diaphragm叶片状隔板
tech.blasting diaphragm爆破隔膜
tech.blowout diaphragm快速光阑
tech.blowout diaphragm遮断膜片
tech.blowout diaphragm防爆膜
tech.blowout door diaphragm防爆门薄膜
tech.bore diaphragm螺旋桩墙
tech.bracing diaphragm加劲隔板
tech.bracing diaphragm支撑隔板
tech.bucky diaphragm栅格光栏
avia.burst diaphragm安全隔膜
tech.bursting diaphragm爆破隔膜
tech.bursting diaphragm防暴门
tech.bursting diaphragm放空门
tech.carbon diaphragm炭精振动膜片
tech.carbon diaphragm炭膜
tech.cat's eye diaphragm猫眼光栏
sport., med.central tendon of diaphragm膈中心腱
tech.centring of diaphragm隔板定中心
refrig.circular diaphragm starting damper圆形光圈式启动阀
tech.closed diaphragm封闭式膜片
tech.clutch diaphragm spring离合器隔膜弹簧
tech.column-type diaphragm wall柱列式地下连续墙
tech.compensating diaphragm补偿十字线片
tech.compensating diaphragm补偿膜片
tech.compensating diaphragm补偿光阑
tech.compensating diaphragm测量望远镜中的测距补偿装置
gen.compensation diaphragm调压薄膜
tech.concrete diaphragm wall地下连续墙
tech.cone diaphragm扬声器纸盆
tech.cone diaphragm锥形膜片
tech.conic diaphragm锥面薄片
avia.conical diaphragm锥面薄片
avia.conical diaphragm angle锥形隔膜角
tech.construction of diaphragm wall地下连续墙施工法
tech.continuous diaphragm type level detector膜片式连续液位检测器
tech.convoluted diaphragm波纹膜片
tech.corrugated diaphragm起纹膜片
tech.corrugated diaphragm皱纹膜片
tech.corrugated steel shell diaphragm波形钢壳心
shipb.crank case diaphragm曲轴箱隔板
tech.cross diaphragm横撑架
tech.cross diaphragm cross frame横隔板
tech.desiccator diaphragm干燥膜
tech.diaphragm accelerometer膜盒加速度计
tech.diaphragm accelerometer膜式加速
tech.diaphragm-actuated隔膜改动的
gen.diaphragm-actuated薄膜制动的
tech.diaphragm-actuated regulator薄膜调节器
tech.diaphragm adjusting lever光阑调节杆
tech.diaphragm and piston pump膜式和活塞式水泵
tech.diaphragm and piston-type pulsator薄膜和活塞式脉动器
tech.diaphragm aperture measurement光阑孔径测量
tech.diaphragm asbestos cloth隔膜石棉布
tech.diaphragm automatic valve自动膜片阀
tech.diaphragm baffle薄膜挡圈
tech.diaphragm baffle挡气膜
tech.diaphragm ball valve隔膜球阀
tech.diaphragm barometer膜盒压力表
tech.diaphragm barometer膜片式气压计
tech.diaphragm blast gage膜片式风压表
tech.diaphragm blast gauge膜片式风压表
tech.diaphragm box level controller气压型鼓膜液面控制器
tech.diaphragm box level controller膜盒式料位控制器
tech.diaphragm burner辐射板燃烧器
gen.diaphragm button隔膜钮
tech.diaphragm capsule type level gage膜盒式液位计
tech.diaphragm capsule type level gauge膜盒式液位计
tech.diaphragm case送话器盒
tech.diaphragm cell扇形格体
tech.diaphragm cell隔墙式格体
tech.diaphragm cell鼓形格体
tech.diaphragm cell有横墙的格仑
tech.diaphragm cellular cofferdam格形隔板围堰 (由两排连续弧形板桩构成)
tech.diaphragm chamber薄膜盒
tech.diaphragm chamber type rate-of-rise detector薄膜盒温升率探测器
tech.diaphragm chuck薄板式夹头
tech.diaphragm chuck薄膜式夹具
tech.diaphragm chuck膜板式夹头
tech.diaphragm compressor式压缩机
shipb.diaphragm compressor薄膜式压缩机
tech.diaphragm compressor隔板式增压器
tech.diaphragm compressor隔膜式压气机
tech.diaphragm compressor隔膜式压缩机
avia.diaphragm compressor膜片压缩机
tech.diaphragm contractor's pump膜式施工用泵
tech.diaphragm control knob光阑控制组
tech.diaphragm current隔膜电流
tech.diaphragm dam有防渗墙的坝
tech.diaphragm dam隔墙坝
tech.diaphragm dam有隔墙的坝
tech.diaphragm draught gage膜式通风计
tech.diaphragm draught gauge膜式通风计
tech.diaphragm-ejector amplifier膜片喷射放大器
tech.diaphragm expansion joint膜片胀缩接合
refrig.diaphragm expansion tank膜式膨胀水箱
tech.diaphragm feeder隔膜给料器
tech.diaphragm field光阑视场
tech.diaphragm filter press隔膜压滤机
tech.diaphragm float流速仪率定车上的隔板浮子
tech.diaphragm float横隔浮标
tech.diaphragm for excess pressure head超压膜
tech.diaphragm for penetration of bus母线穿墙隔板
tech.diaphragm forming隔膜法成型
tech.diaphragm fuel pump膜片燃料泵
tech.diaphragm gage膜盒真空计
tech.diaphragm gage式压力计
tech.diaphragm gage薄膜式压力盒
tech.diaphragm gage薄膜式压力计
tech.diaphragm gage式压力计
tech.diaphragm gas meter膜盒式煤气表
tech.diaphragm gas meter隔膜煤气计
refrig.diaphragm gas meter膜盒式气体流量计
tech.diaphragm gauge式压力计
tech.diaphragm gauge式压力计
tech.diaphragm gauge膜盒真空计
tech.diaphragm gauge薄膜式压力盒
tech.diaphragm gauge薄膜式压力计
shipb.diaphragm gauge膜片式压力表
nautic., tech.diaphragm gland隔板气封
tech.diaphragm governor薄膜调压器
tech.diaphragm grate盘形浇口
tech.diaphragm horn电动高音雾号
tech.diaphragm horn膜片喇叭
nautic., tech.diaphragm housing ring隔板套
tech.diaphragm in bulbous bow球鼻首隔板
tech.diaphragm index光阑指数
tech.diaphragm jig隔膜跳汰机
tech.diaphragm knapsack sprayer背负式膜片泵喷雾机
tech.diaphragm level gage膜片式液位计
tech.diaphragm level gauge膜片式液位计
tech.diaphragm logic element薄膜逻辑元件
tech.diaphragm manometer隔膜压力计
tech.diaphragm manometer膜片压力表
refrig.diaphragm manometer膜盒式压力表
tech.diaphragm meter膜片计量器
tech.diaphragm meter薄膜式煤气表
tech.diaphragm meter隔膜流量表
tech.diaphragm meter干式煤气表
tech.diaphragm metering pump膜式计量泵
tech.diaphragm motor膜片阀控制电动机
tech.diaphragm motor光阑驱动电
gen.diaphragm-motor光阑〔隔膜,膜片阀〕驱动电动机
tech.diaphragm opening光阑孔径
gen.diaphragm-operated鼓膜的
tech.diaphragm-operated薄膜传动
gen.diaphragm-operated薄膜传动的
gen.diaphragm-operated膜片
tech.diaphragm-operated bin material-level indicator薄膜操作式料仓料位指示器
refrig.diaphragm-operated control valve膜片操作的控制阀
refrig.diaphragm-operated control valve膜动控制阀
tech.diaphragm-operating mechanism薄膜致动机构
tech.diaphragm operation隔膜操作
tech.diaphragm orifice隔膜孔口
tech.diaphragm orifice板孔
tech.diaphragm orifice光阑孔
tech.diaphragm oscillation膜振动
refrig.diaphragm packing leakage loss膜片密封渗漏损失
tech.diaphragm packing ring迷宫式隔板汽封环
tech.diaphragm paper隔膜纸
tech.diaphragm plate隔片
tech.diaphragm plate
tech.diaphragm plate孔板
tech.diaphragm plate fish pass隔板式鱼道
tech.diaphragm pressure薄膜压力
tech.diaphragm pressure gage薄膜压力计
tech.diaphragm pressure gage膜片式压力计
tech.diaphragm pressure metering薄膜压力调节
tech.diaphragm process隔膜法
avia.diaphragm propellant tank隔膜式推进剂贮箱
tech.diaphragm pulsator薄膜式脉动器
tech.diaphragm pump薄膜泵
tech.diaphragm pump气压抽水泵
tech.diaphragm pump膜片泵
tech.diaphragm pump隔板式泵
tech.diaphragm pump隔膜
tech.diaphragm pump蒸汽双缸泵
tech.diaphragm pump膜式水泵
tech.diaphragm pump隔膜式抽水机
tech.diaphragm quaywall地下连续墙码头岸壁
tech.diaphragm range光圈变动范围
refrig.diaphragm refrigerant compressor膜式制冷压缩机
tech.diaphragm regulating valve膜片调节阀
tech.diaphragm regulator膜片调节器
tech.diaphragm regulator薄膜调压器
tech.diaphragm relay膜片式继电器
tech.diaphragm retaining wall帷幕挡土墙
tech.diaphragm retaining wall帷幕截水墙
tech.diaphragm retrofit隔膜法改型
avia.diaphragm rupture膜片破裂
tech.diaphragm scale光圈分划
tech.diaphragm screen平筛
tech.diaphragm seal密封膜薄膜密封
tech.diaphragm seal密封片
tech.diaphragm seal膜片密封
tech.diaphragm seal flowmeter膜片式密封流量计
tech.diaphragm seal pressure gage隔膜密封压力计
tech.diaphragm seal pressure gauge隔膜密封压力计
tech.diaphragm sealed displacement transmitter密封膜片容积式液位传感器
tech.diaphragm shutter光圈快门
tech.diaphragm-spot栏影圈
tech.diaphragm sprayer膜片泵喷雾机
tech.diaphragm spring隔膜簧
tech.diaphragm spring膜片弹簧
tech.diaphragm spring clutch膜片弹簧式离合器
tech.diaphragm strain gage式应变计
tech.diaphragm strain gauge式应变计
tech.diaphragm stress膜应力
tech.diaphragm switch薄片开关
tech.diaphragm tank隔膜水箱
tech.diaphragm transducer膜式传感器
tech.diaphragm transducer膜式转换器
tech.diaphragm-transmitted sound膜片振动音
tech.diaphragm type隔膜式
tech.diaphragm type
tech.diaphragm type accelerometer膜盒式加速表
tech.diaphragm type accelerometer膜片式加速表
tech.diaphragm type accumulator膜片式储能器
tech.diaphragm type carburettor薄膜式汽化
tech.diaphragm type cellular cofferdam隔墙式格型围堰
nautic., tech.diaphragm type compressor膜式压缩机
tech.diaphragm type compressor膜片式压缩机
tech.diaphragm type compressor薄膜式压缩机
refrig.diaphragm type compressor隔膜式压缩机
tech.diaphragm type differential pressure gage膜片式差压计
tech.diaphragm type differential pressure gauge膜片式差压计
tech.diaphragm type filter press隔膜式压滤机
tech.diaphragm type fuel pump膜片式油泵
tech.diaphragm type gas meter膜片式煤气表
tech.diaphragm type gas meter膜片式气量计
tech.diaphragm type jig隔膜式跳汰机
tech.diaphragm type level meter膜片式液位计
tech.diaphragm type metering pump膜片式计量泵
tech.diaphragm type paint sprayer膜片式喷漆器
tech.diaphragm type positive displacement metering pump隔膜型正排量计量泵
tech.diaphragm type power brake膜片式动力制动器
tech.diaphragm type pressure balance detector膜片式压力平衡检测器
tech.diaphragm type pressure gage膜盒式压力表
tech.diaphragm type pressure gage薄膜式压力计
tech.diaphragm type pressure gage薄膜式压力盒
tech.diaphragm type pressure gage膜盒式压力计
tech.diaphragm type pressure gage膜片式压力计
tech.diaphragm type pressure gauge膜盒式压力表
tech.diaphragm type pressure gauge薄膜式压力计
tech.diaphragm type pressure gauge薄膜式压力盒
tech.diaphragm type pressure gauge膜盒式压力计
tech.diaphragm type pressure gauge膜片式压力计
tech.diaphragm type pressure sensor膜片式压力传感器
tech.diaphragm type sludge pump隔膜式污泥泵
tech.diaphragm type sludge pump膜片式泥浆泵
tech.diaphragm type wash box隔膜式跳汰机
tech.diaphragm type wind pressure gage膜片式风压表
tech.diaphragm type wind pressure gauge膜片式风压表
tech.diaphragm vacuum gage膜片式真空计
tech.diaphragm vacuum gauge膜片式真空计
tech.diaphragm valve膜式阀
tech.diaphragm valve薄膜活门
refrig.diaphragm valve薄膜阀
gen.diaphragm vibrating microphone振膜式传声器
tech.diaphragm wall堤坝防渗墙
tech.diaphragm wall counterfort地下连续墙扶壁
tech.diaphragm walling地下连续墙
CNCdiaphragm washer隔膜护圈
tech.diaphragm with lifting scoops带扬料板的隔仓板
tech.diaphragm works地下连续墙工程
tech.differential diaphragm差压隔膜
tech.differential diaphragm差压膜板
tech.disk diaphragm旋转式光阑
tech.displacement diaphragm排量膜板
tech.double diaphragm cone双隔膜圆锥分级机
tech.double diaphragm pressure gage双膜式土压力盒
tech.double diaphragm pressure gauge双膜式土压力盒
tech.double diaphragm pump双膜式泵
tech.double layer diaphragm plate双层隔仓板
tech.dual diaphragm pump复式隔膜泵
tech.dual diaphragm pump双隔膜泵
gen.duralium diaphragm硬〔笃〕铝振动膜
tech.effective diaphragm有效光阑
shipb.elastic diaphragm switch弹性振动膜开关
shipb.elastic diaphragm switch弹性薄膜开关
tech.electric diaphragm emitter电雾雷
tech.electric diaphragm emitter电雾号
tech.electric diaphragm pump电动隔膜泵
tech.electrical diaphragm emitter电雾雷
tech.electrical diaphragm emitter电雾号
tech.electrical diaphragm pump电动隔膜泵
tech.end diaphragm端部隔板
tech.end diaphragm终端横隔墙
tech.explosion diaphragm防爆膜板
tech.external diaphragm外光阑
tech.eye diaphragm of caisson沉箱的眼窗隔板
tech.eyepiece diaphragm目镜光阑
tech.field diaphragm视场阑
tech.field diaphragm视域光阑
tech.filter diaphragm滤机隔膜
tech.filter diaphragm滤膜
tech.flanged diaphragm gage法兰式膜片压力表
tech.flanged diaphragm gauge法兰式膜片压力表
tech.flat diaphragm平膜片
tech.flexible diaphragm柔软膜片
tech.floor diaphragm楼层横隔板
tech.floor diaphragm楼面隔板
tech.fore-and-aft diaphragm纵向隔板
tech.frame diaphragm框架隔板
tech.free edge diaphragm自由边缘膜片
tech.fuel control diaphragm燃料供给控制膜
tech.fuel pump diaphragm燃油泵膜片
tech.fuel pump diaphragm spring燃油泵膜片弹簧
shipb.full automatic diaphragm全自动光阑
tech.fully automatic diaphragm全自动可变光阑
tech.fully automatic diaphragm全自动膜盒
tech.gangway diaphragm通道折棚
tech.gasifier nozzle diaphragm透平喷射器
tech.gasifier nozzle diaphragm燃气发生器
tech.gasoline pump diaphragm protecting washer汽油泵膜片保护垫圈
tech.Gibbs diaphragm cell吉布斯隔膜电解池
tech.graduating diaphragm分度光阑
tech.gravity diaphragm wall重力式地下连续墙
tech.high-pressure diaphragm pump高压隔膜泵
tech.horizontal diaphragm水平隔板
shipb.horizontal diaphragm cell平膜电解池
tech.horn diaphragm喇叭膜
tech.horn diaphragm washer喇叭膜护圈
tech.hydraulic relay valve diaphragm水力继动阀膜
tech.impermeable diaphragm不渗透的膜层
tech.impermeable diaphragm阻水层
tech.impermeable diaphragm不渗透挡板
tech.impermeable diaphragm of the continuous wall type连续墙型不渗透
tech.impervious concrete diaphragm混凝土防渗墙
tech.impervious concrete diaphragm不透水混凝土面层
tech.impervious diaphragm不渗透挡板
tech.impervious diaphragm防渗水芯墙
tech.impervious diaphragm不渗透隔膜
tech.impervious diaphragm不渗水
tech.impervious diaphragm wall防水墙
tech.impervious diaphragm wall不渗透的阻挡墙
tech.industrial diaphragm pressure gage工业用膜片式压力表
tech.industrial diaphragm pressure gauge工业用膜片式压力表
tech.inflatable diaphragm气力缓冲器
tech.interior diaphragm内横隔板
tech.intermediate diaphragm中间挡板
tech.intermediate diaphragm隔仓板
tech.intermediate diaphragm中间隔板
tech.iris diaphragm光圈
tech.iris diaphragm锁光圈
tech.iris diaphragm photometer光瞳光度计
tech.Jeffrey diaphragm jig杰弗雷型隔膜跳汰机
tech.leaf of diaphragm光阑薄片
tech.leaf of diaphragm光圈瓣
tech.leather diaphragm皮料薄膜
tech.light beam diaphragm光束隔膜
tech.limiting diaphragm限制膜片
tech.limp-diaphragm柔软膜片
tech.load-bearing diaphragm承重隔膜
tech.lower diaphragm plate and valve stem下部隔膜板及阀杆
tech.low-pressure load reducing fork diaphragm低压减荷叉皮膜
tech.MA cell diaphragm cell with metal anodes金属阳极隔膜电解槽
tech.masonry diaphragm圬工隔膜
tech.masonry work diaphragm砖石隔板
tech.matching diaphragm匹配窗口片
tech.measuring diaphragm测量孔板
refrig.metal diaphragm filter金属膜片过滤器
tech.metal diaphragm pump金属隔膜泵
tech.metallic diaphragm金属膜片
tech.mica diaphragm云母膜片
shipb.microphone diaphragm扩音器振月莫
tech.mill diaphragm partition磨机隔仓板
tech.mobile diaphragm liquid manure pump移动式薄膜厩液泵
tech.modified diaphragm改性隔膜
tech.multiple diaphragm gage多模片压力表
tech.multiple diaphragm gage多膜片压力计
tech.multiple diaphragm gauge多模片压力表
tech.multiple diaphragm gauge多膜片压力计
sport., med.muscle of diaphragm隔肌
tech.Mylar diaphragm聚酯薄膜
tech.Nelson's diaphragm cell纳尔逊隔膜电解槽
tech.network diaphragm网状光阑
tech.nodal diaphragm节隔膜
tech.non-supporting diaphragm wall自立下连续墙
tech.nose of diaphragm wall地下连续墙鼻
avia.nozzle diaphragm固体火箭喷管爆破隔膜
tech.nozzle diaphragm喷嘴装置
tech.nozzle diaphragm喷嘴环
avia.nozzle diaphragm润轮导向器
tech.number of diaphragm光圈号数
tech.oil-free diaphragm pump无油膜片泵
tech.optimum diaphragm最佳光阑
tech.output diaphragm输出光阑
tech.perforated diaphragm多孔隔膜
tech.pile diaphragm桩隔板
tech.pile diaphragm桩隔墙
tech.pillar-row type under-ground diaphragm wall柱列式地下连续墙
tech.piston and diaphragm pump活塞与隔膜泵
tech.plan of diaphragm wall地下连续墙平面图
tech.plywood diaphragm胶合板隔墙
tech.plywood diaphragm胶合隔墙
tech.pneumatic diaphragm pump风动隔膜泵
tech.porous diaphragm cell多孔隔膜电解池
tech.preset diaphragm预置光阑
refrig.pressure controlled diaphragm压力调节的薄膜
tech.pressure-sensitive diaphragm压力感传膜片
tech.pulsation damping diaphragm脉动阻尼薄膜
tech.pump diaphragm泵膜片
tech.pumping diaphragm泵膜
tech.receiver diaphragm受话器膜片
tech.reciprocating diaphragm pump往复式隔膜泵
tech.relay valve diaphragm spring继动阀隔膜簧
tech.resonant diaphragm共振膜片
tech.reversible diaphragm piston type pneumatic spring双向膜片活塞式空气弹簧
tech.revolving diaphragm回转光圈
tech.rigid diaphragm刚性隔板
tech.rolling diaphragm滚动隔膜
tech.rolling diaphragm actuator滚动薄膜式液压缸
tech.rotary diaphragm回转光圈
tech.rotary symmetric diaphragm旋转式对称膜片
tech.rotary symmetrical diaphragm旋转式对称膜片
tech.rubber diaphragm橡胶隔膜
tech.rubber diaphragm separator橡皮隔膜
tech.scanning diaphragm扫描光栏
tech.scanning diaphragm扫描膜片
tech.secondary diaphragm推迟膜片
tech.separator diaphragm隔板隔膜
tech.set diaphragm调整光圈
tech.setting of diaphragm光阑调节
tech.shear diaphragm抗剪隔板
tech.sheet diaphragm薄铁振动片
tech.sieve diaphragm隔膜
tech.single diaphragm pump单隔膜式泵
tech.single-layer diaphragm plate单层隔仓板
tech.sliding diaphragm滑动光阑
tech.slit diaphragm缝隙光阑
tech.slotted diaphragm篦板
tech.slotted diaphragm缝隙光阑
tech.slotted diaphragm带篦缝的隔仓板
tech.solid diaphragm加劲片
tech.split diaphragm拼合隔板
tech.spring diaphragm弹簧膜
tech.star-shaped diaphragm星状光圈
tech.steel diaphragm钢膜片
tech.steel diaphragm坝内的钢心墙
tech.steel plate diaphragm钢隔板
tech.stretched diaphragm张紧膜片
tech.supported diaphragm支承隔板
tech.symmetric inductive diaphragm对称电感窗口片
tech.symmetrical inductive diaphragm对称电感窗口片
tech.tank breathing diaphragm油罐的通气隔膜
tech.three-diaphragm brake chamber三膜片制动分泵
tech.three-diaphragm element三膜片元件
tech.transfer diaphragm转料隔板
tech.turbine diaphragm涡轮导流片
tech.turbine diaphragm涡轮机导流隔板
tech.twin-diaphragm jig双隔膜跳汰机
tech.twin-diaphragm jig双膈膜夹具跳汰机
tech.twin-diaphragm pump双膈膜泵
tech.underground diaphragm地下防水墙
tech.underground diaphragm墙面的地下防水层
tech.underground diaphragm wall地下防渗墙
tech.unidirectional rupture diaphragm valve单向破膜阀
tech.unsymmetric diaphragm不对称膜片
tech.unsymmetrical diaphragm不对称膜片
tech.upstand diaphragm beam上隔板梁
racingvacuum diaphragm真空隔膜
tech.variable diaphragm可变光阑
tech.vertical diaphragm cell竖隔膜电池
tech.vibrating diaphragm振荡光阑
tech.vibrating diaphragm振动膜片
tech.vibration diaphragm振动膜
tech.volumetrical type diaphragm pump容量型隔膜泵
tech.Vorce diaphragm cell伏尔斯隔膜电解槽
tech.wall-type underground diaphragm wall墙式地下连续墙
tech.water diaphragm水压膜片
tech.water-tight diaphragm防渗地下连续墙
tech.water-tight diaphragm防水
tech.water-tight diaphragm刚性的防渗心墙
tech.water-tight diaphragm防渗斜墙
tech.water-tight diaphragm防渗护面
tech.water-tight diaphragm阻水层
tech.water-tight diaphragm防水
tech.water-tight diaphragm dam有防渗心墙的坝
tech.wire gauze diaphragm线网隔层
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