water drum

• 下汽包,水包

water drum的用法和样例：

例句

1. Thisis a set of six rations consisting of a biscuit substitute, algae hard tack,algae crackers, coffee bag, coffee can, and water packet.
   这是一套六包的口粮组成的饼乾代替，藻类硬钉，藻类饼乾，咖啡袋，咖啡可以和水包。
2. In the experiment, with the increase of water cut, the frictional pressure drops decrease sharply when water disperses in oil but hardly change when oil disperses in water.
   本实验范围内，当管内液相处于油包水时，摩擦压降随含水率的增大急剧减小，当液相处于水包油时，随着含水率的增大，流动摩擦压降随含水率的增大变化平缓。