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cation ['kætaiən] n
gen.	阳〔正,阴向〕离子
agric.	阳电荷
archit.	阳正离子
el.chem.	阳离子
met.	正离子
space	正阳离子
tech.	阳离子正离子
cation A positively charged atom or group of atoms, or a radical which moves to the negative pole (cathode) during electrolysis n
environ.	阳离子 (带正电荷的原子或者一组原子，或者在电解时趋向负极(到阴极)的原子团。)

cation: 337 phrases in 32 subjects

Agriculture	33
Animal husbandry	1
Aviation	2
Biotechnology	1
Business	1
Chemistry	24
Desert science	2
Drilling	1
Earth sciences	9
Ecology	7
Electronics	18
Engineering geology	6
Explosives and Explosive Ordnance Disposal	2
General	6
Genetics	3
Geology	1
Geophysics	2
Hydroelectric power stations	1
International trade	1
Life sciences	1
Metallurgy	47
Mining	1
Oil / petroleum	19
Plastics	9
Polymers	19
Refrigeration	1
Soil science	1
Space	2
Surgery	1
Technology	84
Textile industry	8
Water resources	23