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防松垫圈 fángsōng diànquān
compr.	lock washer
dril.	locking ring
met.	check washer
shipb.	antiloosing washer
tech.	anti-loosing washer; locking washer
wind.	lockwasher
防松〔锁紧〕垫圈
gen.	loe-king washer
防松棘齿垫圈
auto.	star washer
防松安全垫圈
auto.	safety washer
防松〔锁紧，止动，弹簧〕垫圈
mech.eng.	lock washer

防松 垫 圈: 3 phrases in 2 subjects

Compressors	1
Technology	2