fixed control

• 定位操纵,固定测量方法

fixed control的用法和样例：

例句

1. She is skillful enough to control the machine now.
   现在她已有了足够的技术可以操纵这台机器了。
2. The timer must have been actuated by radio control.
   这个定时器肯定是无线电操纵开动的。