But there have been a lot of problems about bus and coach safety to be solved, such as safety regulation, structure, CAE work, manufacture.
在客车安全中尚有许多值得深入研究的领域，如客车安全相关法规、客车车体结构、客车CAE工作和安全车身的制作等。
Safe bus and coach will have a good development prospect due to their serious safety problems.
因为客车安全问题严重，故安全客车会有很好的发展前景。
The improved project mentioned in this paper can effectively enhance the crashworthiness of this double-decker coach, and also provides the effective way to improve the bus' frontal impact safety.
所采用的改进方案可有效提高双层公路大客车的耐撞性，为改善大客车正面碰撞安全性提供了行之有效的途径和方法。
Recent years, the passive safety of large bus and coach has been studied deeply by foreign countries, and good effects have been achieved.
近年来，国外大客车被动安全研究进展迅速，并取得了良好的效果。
Recent years, the passive safety of large bus and coach has been studied deeply by foreign countries, and good effects have been achieved.
近年来，国外大客车被动安全研究进展迅速，并取得了良好的效果。
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