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等量线
gen.	isograd
oil	isograde
rem.sens.	isoline; line of constant scale
textile	isoquant line

等量线: 94 phrases in 24 subjects

Agriculture	5
Animal husbandry	2
Architecture	4
Aviation	2
Bridge construction	1
Business	5
Chemistry	1
Corporate governance	1
Desert science	5
Economy	7
Electronics	2
Engineering geology	6
Explosives and Explosive Ordnance Disposal	2
General	4
Hydroelectric power stations	8
International Monetary Fund	1
International trade	1
Metallurgy	2
Nuclear physics	1
Oil / petroleum	5
Rail transport	2
Refrigeration	1
Space	3
Technology	23