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ring spring
auto. 环状弹簧
railw. 环弹簧
space 环形弹簧
tech. 止动环; 弹簧环
ring spring
: 54 phrases in 14 subjects
Angling hobby1
Automobiles11
Compressors2
Construction1
Drilling2
Electric machinery2
Electronics1
Exhibitions1
Oil / petroleum3
Plastics1
Rail transport4
Space3
Technology21
Telecommunications1