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Within standard dimensions, how far may an ordinary heavy truck and its load extend on either side of the longitudinal centre line?
标准尺寸的普通重型卡车连同货物，从纵向中心线向任意一侧最多可以延伸多远？
An ordinary heavy truck and its load may extend up to 1.275 metres on either side of the longitudinal centre line under standard dimensions.
标准尺寸普通重型卡车连同货物，从纵向中心线向任意一侧最多1.275米。
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Keeping the total width within 2.55 metres does not allow the load to be offset beyond the limit on one side. Other applicable dimensions must also comply.
两侧并非可随意偏置到总宽仍为2.55米就算合规；也须满足适用的总宽及其他尺寸限制。