noun 下载 🔗分享 脉石, 尾矿。 The earthy waste substances occurring in metallic ore. Examples : "After the miners extracted the gold ore, they had to remove the gangue, which was mostly rock and sand, before they could process the gold. " 矿工们提取出金矿石后,必须先去除脉石,那些主要是岩石和沙子的尾矿,才能进一步提炼黄金。 geology material substance 与AI对话词汇游戏阅读练习