The Wheel PCD is the diameter of the studs from the centre of the wheel.
汽车轮毂PCD值是指螺栓安装孔的中心连接而成的截面圆的直径。
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The TRL said that composing a text message behind the wheel took 63 seconds, in which time a car travels half a mile within town centre speed limits and over a mile within motorway speed limits.