The toll calculation mode of freight vehicles of Liaoning expressway, which is converted from toll - by - type to toll by total weight of vehicle and goods calculated practically is introduced.
主要介绍了辽宁省高速公路货运车辆通行费计量方式由按车型收费向以实地测量的车货总重量为依据计征通行啻的转换过程。
If magnesium alloy is capable to be a new type of engine material, it is more effective to reduce vehicle weight and to achieve the goal of energy-saving and environmental protection.
镁合金若能成为一种新型的发动机材料，能更有效地减轻汽车自重，真正实现环保节能的目标。
If magnesium alloy is capable to be a new type of engine material, it is more effective to reduce vehicle weight and to achieve the goal of energy-saving and environmental protection.
镁合金若能成为一种新型的发动机材料，能更有效地减轻汽车自重，真正实现环保节能的目标。
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