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concept validation
concept validation
avia.
概念验证
|
phase
phase
el.
瞬时相位
;
相元件
hydroel.st.
阶段
met.
时期
;
方面
phys.
物相
;
相
tech.
相位
;
相
;
状态
to phrases
concept validation
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avia.
概念验证
multimed.
概念确认
concept validation
:
3 phrases
in 2 subjects
Aviation
2
Space
1
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