从电源插口拔出插头而不是拔拉电缆。
在初始状态，从电源关闭阀门和阀门的操作。
In initial state the power from valve is off and the valve is inoperative.
另外，耳机接口只能单向发送信息：从电源到扬声器。
Plus, the headphone jack only sends information one way: from power source to speaker.
从电源建设的各个阶段分别介绍如何对工程造价进行合理控制。
The cost control methods were presented for various stages of power construction.
从驱动程序取消一个打印作业时，电源指示灯会暂时闪烁。
When canceling a print job from the driver, the Power light blinks briefly.
从驱动程序取消一个打印作业时，电源指示灯会暂时闪烁。
When canceling a print job from the driver, the Power light blinks briefly.
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