When you want to manoeuvre the main engine by the pneumatic manoeuvring system, it is necessary to turn the handle to the "normal" position.

当你想要通过气动操纵系统操纵主机时，必须转动手柄到正常位置。

youdao

When you want to manoeuvre the main engine by the mechanical manoeuvring system, it is necessary to turn the handle to the "emergency" position.

当你想要使用机械操纵系统操纵主机时，必须转动手柄到应急位置。

youdao

When you want to manoeuvre the main engine by the pneumatic manoeuvring system, it is necessary to turn the handle to the "normal" position.

当你想要使用机械操纵系统操纵主机时，必须转动手柄到应急位置。

youdao