undercarriage wheel

基本解释

There were at least two cases of soldiers being taken aloft hanging on to the undercarriage or tail wheel in desperation.
至少有两机仓士兵被带上了天空，他们有的拼命抓住飞机的起落架，有的抱住尾轮。
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Another car swerved in the road, its undercarriage passing right over the puppies, a wheel missing one pair by just inches.
又一辆汽车在路上绕了弯子，底盘在小狗头上擦过，车轮离开其中一对小狗才几英寸。
The status of an undercarriage at the touchdown instant is studied by analyzing the undercarriage parameters which change with the wheel rotational speed in the drop test.
以某歼击飞机前起落架为例，用落震试验的方法，通过分析起落架有关参数随机轮转速变化的情况，来研究飞机着陆瞬间起落架的状况。