It provides a valve ball or disk position for a specific input signal.

该类型定位器能按特定的输入信号使阀球或阀板停留在特定位置。

youdao

I saw the ball land on the line. So please go back and show the flag signal of ball "in".

我看清楚球是压线，所以请你回去出示界内球旗示。

youdao

I saw the ball land on the line. So please go back and show the flag signal of ball "in".

我看清楚球是压线，所以请你回去出示界内球旗示。

youdao