lode formation矿脉: a vein of ore; mineral vein层: I storey; tier; stratum矿脉层；矿脉建造: lode formation脉层: streak矿脉: [采矿工程] mineral vein; mineral ore; reef; ore vein; ore lode; vein; lode; wythern; roke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:矿脉层，即可在微信中查询翻译
