This change in polarity causes the magnetic field in front of the train to pull the vehicle forward, while the magnetic field behind the train adds more forward thrust.

这种极性的变化导致列车前方牵引列车前进的电磁场，同时列车后面的电磁场加上了更多的向前推力。

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Once you are in the parking space, move forward or backward to fit within the pavement markings or to allow room for the vehicle in front or behind you to pull out.

一旦进入停车位，向前或向后移动，完全停入路面标线或是为前后车留出驶出车位的空间。

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Dear passengers, vehicle started please pull the armrest, this vehicle to the civic center, the front faculty crossing (provincial TV university), get off passengers please prepared in advance.

各位乘客，车辆起步请拉好扶手，本车开往市民中心，前方教工路口(省电大)，下车的乘客请提前做好准备。

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And many electric utilities have facilities that create hydrogen power, but consumers can't just pull in with a fuel-cell vehicle and say, "Fill 'er up!"

FORBES: Fueling Hope