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- mineral filter media for percolating filters; 英文标题： (Sewage treatment plants;
- He doubles the parts of a farmhand and a miner. 在这出戏里他既扮演雇农又扮演矿工。
- It possessed rich mineral deposits, including gold. 它拥有丰富的矿藏，包括黄金。
- You need to filter the drinking water. 你需要把饮用水过滤。
- The country possesses rich mineral resources. 这个国家有丰富的矿产资源。
- No potassium did we find in this mineral. 在这种矿石中我们没有发现钾。
- A miner's lamp is fixed onto his helmet. 矿灯固定在矿工的头盔上。
- A filter traps dust from the air. 过滤网可存住空气中的尘埃。
- The news of the defeat started to filter through. 战败的消息开始传出来。
- It won't take long to filter the coffee. 用不了多少时间就可以把咖啡过滤好。
- The gold miner staked out his claim. 那位淘金者立桩标出他的地界。
- I took this picture with a red filter. 这张照片我是用红色滤光镜拍摄的。
- He sketched the coal miner in a few minutes. 他几分钟就画了一幅那位煤矿工人的素描。
- Those countries are rich in mineral resources. 那些国家矿物资源很丰富。
- We are digging for mineral deposits. 我们正在掘地探矿。
- Each mineral has crystals of a particular shape. 每种矿物的晶体都有其特殊的形状。
- I think it is dangerous to be a miner. 我认为当矿工是很危险的。
- We usually clear the water with a filter. 我们通常用过滤器使水净化。
- A narrowing of a mineral deposit, as in a mine. 减少矿物沉积物的减少，如在煤矿中
- An actual or probable mineral deposit. 矿石，矿藏确实的或可能的矿藏
