A little boy rode by on a tricycle.
一个小男骑着三轮过去了。
A little boy rode by on a tricycle.
一个小男骑着三轮过去了。
"Many pedal their tricycles, but most of them prefer to push or drag them."
"许多用脚踩三轮踏脚,但大多数都喜欢推着或者拖着三轮。"
Tricycles are lined up on the floor of the pool seven feet under water.
在7英尺深池底上把三轮排好队。
Our son has just graduated from a tricycle to a proper bicycle.
我们刚刚从骑三轮过渡到骑普通自行了。
The greatest drawback to tricycle gear is the greater weight and drag incurred by adding the large nosewheel strut.
另外,由于前轮距重心较远,就不会出现后三点起落架容易发生“拿大顶”现象。(意译
Another critical factor when designing tricycle gear is to properly balance the load carried by the main gear versus the nosewheel.
前三点起落架另一个不利因素,设计时需要较精确分配主轮与前轮负荷.
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