Let's do the impact test.

开始做冲击实验。

All the cars must experience an impact test.

所有小汽车都必须经过碰撞试验。

Hydraulic bum per is the key component of simulating impact test equipment.

液压缓冲器是模拟碰撞试验设备中的关键部件。

During impact test, no vibration and bird pecking phenomenon at contact point.

冲击试验时，接点不应产生振动和鸟啄现象。

METHODS Compared with moisture rate, moisture-proof and the endurance of impact test.

方法用吸湿率、防潮性、耐撞击性等进行比较。