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油润滑器
tech. oil lubricator
油润滑器
: 102 phrases in 16 subjects
Agriculture1
Automobiles17
Compressors5
Drilling4
Earth sciences1
Electric machinery2
Electronics1
General3
Mechanic engineering1
Metallurgy7
Oil / petroleum5
Rail transport2
Refrigeration1
Shipbuilding13
Technology38
Tools1