Pump stop, they would first close the discharge stop valve, and switch to a complete halt until pump suction stop valve was closed.

泵停车时，应先关闭排出停止阀，并待泵完全停转后关闭吸入停止阀。

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Screw pump should be in suction stop valve fully open under the condition of starting, in case of overload or empty.

螺杆泵应在吸排停止阀全开的情况下起动，以防过载或吸空。

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The suction cup on the back keeps the commuter's head in place, while a message on the front asks fellow passengers, "Could you please wake me up when I reach the stop printed below?"

头盔后方的吸盘可以保证通勤者的头部固定在一个位置，头盔的前部有一个小纸条告诉同车的乘客”在列车到达下面所写的这一站的时候，麻烦你能叫醒我么？

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