When auxiliary heaters are turned on the chamber pressure may rise by an order of magnitude or more . 当辅助加热器接近燃烧室工作时,压强就可能上升一个数量级或更多。
The choice of pumping system depends on required pumping speed, ultimate pressure attainable(in a reasonable time) . 泵系统的选择取决于所需要的抽速,能达到的极限压强(在适当的时间内)。
Pressures in liquids rapidly become greater with increasing depth because of the weight of the overlying material . 液体中的压强随着深度的增加而迅速增加,这是由于上层液体的重量而引起的。
Increase in pressure must mean that the molecules are striking their confining walls more forcefully and so must be moving faster . 压强增加,必定意味着分子更加有力地碰撞容器壁,它的运动也必定更快。