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外来杂质 wàilái zázhì
chem. foreign material; extraneous matter; extrinsic contaminants; tramp material
ecol. foreign substance
interntl.trade. extraneous impurities
manag. extraneous impurity
met. foreign impurity; foreign impurities
pest.contr. extraneous material
plast. tramp (material)
tech. exogenous impurity; extraneous dirt; foreign inclusion; foreign matter
外来杂质
auto. introduced contaminant
外来杂质
: 5 phrases in 5 subjects
Chemistry1
Drilling1
Electronics1
Oil / petroleum1
Technology1