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normal size
auto. 标准正常尺寸
construct. 正常〔标准〕尺寸
el.mach. 公称尺寸
railw. 公称粒径
tech. 标准大小; 正常尺寸
wind. 标准尺寸
normal size: 6 phrases in 5 subjects
Finances1
Metallurgy2
Metalworking1
Securities1
Technology1