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质量数 zhìliàngshù
phys. nucleon number; mass number
tech. unclear number
原子质量数 zhìliàngshù
earth.sc. mass number
[原子]质量数 zhìliàngshù
agric. mass number
〔原子〕质量数 zhìliàngshù
chem. mass number
质量数: 311 phrases in 54 subjects
Agriculture1
Animal husbandry4
Automobiles6
Aviation27
Bridge construction1
Business10
Chemistry2
China1
Commerce1
Construction2
Corporate governance2
Cosmetics and cosmetology2
Desert science1
Earth sciences18
Ecology5
Economy11
Electric machinery1
Electronics15
Engineering geology2
Environment1
Explosives and Explosive Ordnance Disposal6
Fishery fishing industry1
Food service and catering3
General6
Geology2
Information technology3
International Monetary Fund8
Librarianship1
Life sciences1
Marketing1
Mathematics1
Metallurgy31
Mining1
Nautical1
Nursing1
Oil / petroleum6
Oil processing plants3
Physics4
Planning1
Plastic surgery1
Plastics2
Polymers1
Quality control and standards5
Rail transport2
Refrigeration2
Securities1
Space13
Sports4
Statistics4
Technology68
Telecommunications2
Textile industry2
Water resources2
Wind Energy8