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鑫汇金矿、金兴金矿已于建矿时进行联系测量，现已开矿10余年。
Contact triangle measuring was used in Xinhui and Jinxing gold mines when they were built 10 years ago.
youdao
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鑫汇金矿、金兴金矿已于建矿时进行联系测量，现已开矿10余年。
Contact triangle measuring was used in Xinhui and Jinxing gold mines when they were built 10 years ago.
youdao