The bright returnstroke travels upward at around half the speed of light, and is too fast to capture in more than one image.
闪亮的回击以光速的一半速度上行传播，由于它的速度太快，在一张图象中不能捕捉到这一过程。
2
The application of vapor-liquid reseparator in the main return tube can effectively decrease the frequency of wet stroke and rapidly handle it and thus increase refrigerating efficiency.
采用在回汽总管上设置汽液再分离器，可以有效的减少湿冲程次数并能快速处理湿冲程现象，提高制冷效率。
3
The spring absorbs the energy of the impact, the shock absorber releases it on the returnstroke, and prevents an oscillating force from building up.