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to phrases
基本体系
bridg.constr.
principal system
tech.
base system
;
primary structure
结构的
基本体系
tech.
principal system
基本 体系
:
12 phrases
in 7 subjects
Animal husbandry
1
Aviation
2
Bridge construction
3
China
3
Economy
1
Engineering geology
1
Nautical
1
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