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油循环润滑
chem. lubrication by oil circulation
el.mach. circulating oil lubrication
plast. oil circulation lubrication
tech. lubrication by oil circulation (法); oil circulating lubrication (法)
油循环润滑: 13 phrases in 5 subjects
Automobiles4
Compressors1
Metallurgy1
Oil / petroleum1
Technology6