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to phrases
internal standard
met. 内部标准
oil 内标准
plast. 内标
space 内标物; 内标
tech. 标准; 内标法
textile 国内标准
internal standard: 20 phrases in 10 subjects
Aviation1
Business1
Consulting1
Finances3
Mechanic engineering1
Metallurgy1
Oil / petroleum2
Polymers1
Securities1
Technology8