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泄放孔
archit. bleed
el. bleeder hole
met. bleed hole
tech. discharge hole; escape orifice
泄放〔通风〕孔
construct. bleeder hole
泄 放 孔
: 11 phrases in 7 subjects
Automobiles3
Aviation1
Compressors1
General1
Oil / petroleum2
Space1
Technology2