Single - or multiple leakage test, by suppressing media filling quantity is small, if the tube bundle leakage, easy to from the pressure gauge on the fastshow pressure drop.
单管或多管试漏时，因打压介质充填量小，若管束有漏点，易于从压力表上快速显现出压降。
2
The other is that they must be able to refresh their images at a rate fast enough to show moving pictures.
另一个是它们必须能够以足够快的速率来刷新图像以能够显示移动的图片。
3
The symptoms presented in the verbose GC logs show a very fast drop in the available free heap space in a very short time.