built-in oscillation

• 固定振荡,固有振荡

built-in oscillation的用法和样例：

例句

1. Tlu method of sduting in vltrasonic oscillation is better.
   超声振荡溶解方法比较好。
2. Negative-Gs can be caused by Pilot-Induced Oscillation, or PIO.
   负亚基可能造成的驾驶员诱发振荡，或先锋。