平板马车一种轻便的四轮马车，车身为一有弹性的平板，上设座椅，无顶盖。
A four-wheeled open carriage with the seat or seats attached to a flexible board running between the front and rear axles.
平板马车一种轻便的四轮马车，车身为一有弹性的平板，上设座椅，无顶盖。
A four - wheeled open carriage with the seat or seats attached to a flexible board running between the front and rear axles.
通过水槽规则波波压力实验，对规则波作用下无顶盖开孔沉箱所受垂直力进行了系统的研究。
The uplift force on bottom and the total vertical force of regular waves acting on perforated caisson are systematically investigated by experiments in this study.
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