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异径接头 yì jìng jiētóu
auto.	reducer (thinner)
compr.	reducer fitting; reducing union
dril.	adaptor; adapter coupling; adapter substitute; adapter; change-over sub; combination sub; connecting reducer; increaser; mandrel substitute; reduced section sub; sloper; sub; substitute; swage; swage nipple; swedge
mech.	reducer
oil	reducing joint; swedged nipple
plast.	adaptor socket; adapter socket
railw.	reducing socket
tech.	bell nipple; bump joint; reducing piece; subcoupling; substitute sub
异径管子接头
archit.	constricted end joint
异径接头管 yì jìng jiētóu
oil	increaser; reducer
异径〔变径，减径，转接，渐缩〕接头
gen.	reducer
螺旋立轴接与钻杆连接的异径接头 yì jìng jiētóu
tech.	screw-to-rod adapter

异 径接头 : 36 phrases in 10 subjects

Architecture	1
Automobiles	1
Chemistry	1
Drilling	6
Engineering geology	1
Hydroelectric power stations	1
Metallurgy	1
Oil / petroleum	7
Rail transport	1
Technology	16