ambient medium

• 周围介质

ambient medium的用法和样例：

例句

1. When the hydrodynamic front reaches the ambient medium it acts like a fast-moving piston.
   当流体力学波阵面抵达周围介质时，它像一个运动迅速的活塞。
2. Then the magnetic connection between the cloud and the surrounding medium will be broken.
   其时云和周围介质间的磁联系就终止了。