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- A separation in the boundary layer of fluid about a moving streamlined body, such as the wing of an airplane, causing a breakdown in the smooth flow of fluid and resulting in turbulence. 气流分离移动的流线型的躯体上流体边界层上的分隔物，如飞机的机翼，在平滑的流体流动中会引起故障和湍流
- The outermost layer of fluid clings to the walls of the tube, and its velocity is zero. 最外层流体附着管壁，速度为零。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- The inner layer of the wall of a spore. 孢子内壁孢子壁的内层
- There is a fine layer of dust on the desk. 桌子上有一层薄薄的尘土。
- The middle, usually fleshy layer of a fruit wall. 中果皮果皮中间通常含肉较多的那一层
- A fine layer of dust covers everything. 所有的东西都盖了一层薄薄的灰尘。
- A thin layer of bone, membrane, or other tissue. 骨骼、粘膜或其它组织的薄层
- A device that cuts off a flow of fluid. 截止阀把一股液体截断的装置
- The aspiration of fluid from the peritoneal cavity. 抽取腹腔内液体。
- The amount of fluid that flows in a given time. 给定时间内液体流动的数量。
- Drink plenty of fluid, such as juice or drinks. 多摄取水分，如果汁、饮料等。
- Gulps of fluid leave the stomach more rapidly. 大口喝下的水会更快离开胃。
- The smooth motion characteristic of fluids. 流动液体具有特色的平稳移动性
- There are several layers of meaning. 有几层不同的含意。
- A layer of skin peeled off her sun-burnt back. 她晒黑的背上掉了一层皮。
- He was kept alive with intravenous dripping of fluid. 他靠输液维持着生命。
- The altitude of the lowest layer of clouds. 云幕高度最低层云的海拔高度
- The growth of successive layers of a cell wall. 敷着，附着细胞壁连续层的生长
- This cake has a layer of chocolate in the middle. 这蛋糕中间有一层巧克力。
