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to phrases
mass number
agric.
[原子]质量数
chem.
〔原子〕质量数
earth.sc.
质量〔数〕
;
原子
质量数
phys.
核子数
;
质量数
mass number:
8 phrases
in 6 subjects
Agriculture
1
Chemistry
1
Oil / petroleum
1
Oil processing plants
1
Polymers
1
Technology
3
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