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精铜 jīngtóng
archit. tough cake (含铜约 99%)
tech. tough cake (含铜约99%)
精铜含铜约99% jīngtóng
construct. tough cake
精铜反射炉精炼产品,铜含量在99%以上 jīngtóng
met. tough pitch copper
精铜
: 57 phrases in 7 subjects
Economy1
Electric machinery1
General1
Metallurgy46
Oil / petroleum1
Technology6
Textile industry1