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piston-valve
 piston valve
agric. 活塞式滑阀; 圆柱活塞
auto. 圆筒 阀
nautic. tech. 活塞式阀
| gear
 gear
gen. 装备; 设备
fishery 渔具; 用具
hydroel.st. 齿轮

to phrases
piston valve
agric. 活塞式滑阀; 圆柱活塞
auto. 圆筒
nautic., tech. 活塞式阀
oil 活塞阀
piston-valve gear
: 76 phrases in 11 subjects
Automobiles10
Aviation1
Compressors3
Drilling3
Hydroelectric power stations1
Metallurgy2
Nautical1
Oil / petroleum6
Rail transport3
Refrigeration1
Technology45