placer gold

常見例句

雙語例句

• It belong to karst type mountain crystal-placer gold ore. This discovery has practical significance for look for placer gold deposit in Guangxi.
  此發(fā)現(xiàn)對尋找廣西砂金礦，拓寬金礦資源的思路，具有現(xiàn)實意義。
• The studied platinum-gold placer occurs in Quaternary alluvial-diluvial sediments within a piedmont valley of ultrabasic rocks, Northwest China.
  該鉑-金砂礦產(chǎn)于超基性巖體山前谷地的第四紀沖積-洪積層中。
• Geological effects of the method have been also studied by these calculating results through the method for prospecting gold-placer in the north of Huma county in Heilnogjiang province.
  文中通過對于黑龍江省呼瑪河北部地區(qū)前寒武系砂金資源總量予測邏輯信息法的計算結(jié)果分忻，研究了該方法的地質(zhì)效果。
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