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spacer ring
chem. 间隔环
compr. 隔环; 间距环; 定距环
dril. 隔离圈
el. 隔离垫圈
el.mach. 衬圈
mech.eng. 间隔圈〔环〕
met. 垫圈; 垫环; 隔圈
oil 间隔圈; 调整环
plast. 调距环
tech. 隔离环; 间隙圈; 定位环
spacer ring: 9 phrases in 6 subjects
Automobiles1
Compressors1
Drilling1
Oil / petroleum1
Rail transport2
Technology3