dry placer干砂: dry sand; dried sand金矿: gold ore; quarts砂金矿: gravel mine; placer mine; gravelmine◇砂金矿挖掘船开采 gold dredging风成砂金矿: eolian gold placer细粒砂金矿: flour gold下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:干砂金矿，即可在微信中查询翻译
