When the hydrodynamic front reaches the ambientmedium 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
A bleeding opening is provided for enabling a bleeding of the cooling medium out of the aisle (120) and an entering of an ambientmedium into the aisle (120).
泄放开口被提供成使所述冷却介质能够从所述过道(120)泄放和使环境介质能够进入所述过道(120)。
3
The outputs of this kind of optical fiber reflective sensor are independent of the characteristics of the light source, of the losses in the ambientmedium and the target reflectivity.