crescent gear pump

例句：

1. 1. The new moon gear pumpis an essential tool for cleaning the oily parts of the engine.
   新月形齿轮泵是清洁发动机油垢部分的必备工具。
2. 2. The crescent gear pump hasa unique design that makes it more efficientin handling heavy loads.
   新月形齿轮泵具有独特的设计，使其在处理重负载时更加高效。
3. 3. The crescent gear pump is widelyused in industries such as miningand construction, where high-pressure fluids are needed to move heavymaterials.
   新月形齿轮泵广泛应用于采矿和建筑行业，在这些行业中需要高压流体来移动重材料。