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acid-free

[ˌæsɪd'friː]
tech. 无酸的
acid free
anim.husb. 无酸的
acid-free
: 47 phrases in 22 subjects
Animal husbandry3
Automobiles3
Chemistry3
Compressors1
Earth sciences3
Ecology1
Exhibitions1
Explosives and Explosive Ordnance Disposal1
Food service and catering1
General1
Genetics1
Geology2
Light industries1
Medical1
Metallurgy6
Oil / petroleum1
Pharmacology1
Polygraphy1
Pulp and paper industry1
Sports2
Technology10
Water resources2

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