例句 /

The control air is supplied to the P.G. governor at the proper rate reduced by the pressure reducing valve (pos. no. 35).

The control air is supplied to the P.G. governor at the proper rate reduced by the pressure reducing valve (pos. no. 35).

如果你打开此开关,三通电磁阀34动作,控制空气通过三通电磁阀被传送到P。G。调速器代替扫气空气。