fluid element

• 流体元,铃元

fluid element的用法和样例：

例句

1. The open rectangles represent typical elements of the ion fluid.
   空心的矩形表示典型的离子流体元。
2. Every successive element of fluid undergoes the throttling process in a continuous stream.
   在连续的流动中，每一流体元相继地经历节流过程。