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丝堵 sīdǔ
auto. threaded socket
dril. plug; hose cap; tap
hydroel.st. screwed plug
mech. stopper plug
met. pipe plug
oil spigot; screw plug
'丝堵
dril. bull nose
丝堵
: 29 phrases in 7 subjects
Aviation3
Drilling13
Nautical2
Oil / petroleum3
Refrigeration1
Technology6
Textile industry1