Plug-in hybrids, meanwhile, could charge at night, when demand is low, and even pump power back to the grid while parked during the day.

同时，当夜晚用电低谷时，可以利用混合动力装置充电(译注：wikipedia)，甚至可以在白天再把电力传输回电网里。

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The top plug has a solid body that provides positive indication of contact with the landing collar and bottom plug through an increase in pump pressure.

顶塞具有一个实心的塞体，根据泵压的增加它能可靠地显示与止塞箍和底塞的接触。

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First close the plug of a vacuum or pressure meter, if so mounted on the pump, connected to the pump before starting the motor and then open it when the motor move in the normal speed;

如果泵上装有真空表或压力表，要关闭其与泵相连接的旋塞再启动电动机，待转速正常后再打开；

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As pump prices rise and the buzz around plug-in alternatives grows, I vowed to leave behind my privileged public transit lifestyle in New York City and spend three days gasoline-free where it meant something: In my family's hometown suburbs of Durham, N.

FORBES: How To Live Without Gas