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主要原料
zhǔyào yuánliào
busin.
major raw materials
eng.geol.
staple
interntl.trade.
primary data
met.
main feed
主要原
材
料
tech.
main raw material
;
principal raw material
主要 原料
:
10 phrases
in 6 subjects
Business
4
Chemistry
1
Ecology
1
General
2
Metallurgy
1
Technology
1
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