1. The engine is used for pumping water out of the mine. 这台发动机是用来从矿井中抽水的。
2. Increased efficiency in the use of water and wind helped with such tasks as pumping, milling, or sailing. 提高水和风的利用效率有助于抽水、碾磨或航行等工作。
3. The biggest concern of pumping out water from this deep is the gradual settling down of the land surface. 从这么深的地方抽水,最大的问题是地表会逐渐下沉。
4. Even though pumping from these depths is expensive, it is still cheaper than desalinating the ocean water in the large coastal state. 尽管从这种深度抽水很昂贵,但仍然比在这个沿海大州进行海水脱盐来得便宜。
5. Millions of irrigation wells in many countries are now pumping water out of underground sources faster than rainfall can refill them. 在许多国家,数以百万计的灌溉井现在从地下水源抽水的速度,超过了降雨所能再次填满的速度。