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备用泵 bèiyòngbèng
chem. reserv pump
dril. make up pump; service pump
ecol. reserved pump; supplementary pump
el. redundant pump; backet pump; backing pump
hydroel.st. reserve pump; stand-by pump; emergency pump; standby pump
met. jury pump
oil spare pump
steel. the stand by pump
tech. appendage pump; auxiliary pump; backer pump; reserved road; stand-by application
备用〔前级〕泵
construct. backer pump
备用
tech. reserve pump; stand-by pump
备用前级
archit. backer pump
紧急备用泵 bèiyòngbèng
chem. emergency pump
备用泵: 16 phrases in 8 subjects
Drilling1
Ecology1
Electric machinery1
Electronics2
Hydroelectric power stations2
Metallurgy3
Oil / petroleum1
Technology5