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to phrases
material type
avia.
材料类型
;
物料类型
el.
材料型号
libr.
文献类别
;
资料类别
;
资料类型
;
资料种类
material type
:
20 phrases
in 8 subjects
Business
2
Ecology
1
Explosives and Explosive Ordnance Disposal
1
Metallurgy
2
Plastics
2
Semiconductors
2
Space
3
Technology
7
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