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to phrases
universal constant
hydroel.st.
通用常数
metrol.
基本物理常量
;
普适常量
;
普适常数〔恒量〕
polym.
普适常数
universal constant:
18 phrases
in 9 subjects
Agriculture
1
Automobiles
2
Aviation
2
Engineering geology
1
General
1
Metallurgy
1
Space
1
Technology
8
Wind Energy
1
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