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锪孔
auto. counter boring; countersinking; grooving
avia. counterbore
chem. spot facing
el.mach. spotface
锪孔指在已加工的孔上加工圆柱形沉头孔、锥形沉头孔和凸台断面等
auto. countersink
平底锪孔
gen. counterbore
 Chinese thesaurus
锪孔
gen. 1; countersinking∶在孔的顶部周围作成漏斗形凹坑的钻进操作; 2; spot-facing∶在孔的顶部周围作成圆柱形凹坑以便安置螺钉头或垫圈, 或者使连接零件能齐平安装
锪孔
: 5 phrases in 3 subjects
Automobiles3
General1
Technology1