can bottom wheel 条筒底盘齿轮
bottom saw wheel 带锯下轮
bottom pad for third wheel 过轮下托垫
Universal Wheel Bottom Plate 万向轮底板
bottom shaft wheel 下轴齿轮
three-spoke flat-bottom multifunction steering wheel 三幅平底多功能方向盘
This time, he turns his attention to an old crusty pipe protruding from the bottom of the wall. He grabs the wheel valve on the pipe and turns it with some effort.
这次，他的注意力集中在墙底部的一条陈旧的带有硬壳的管道，他抓住管道上的轮形阀门，很费力的将阀门扭开。
These cars will then travel alongside to match the speed of the wheel at the bottom of its rotation so passengers can transfer in and out of the cars.
这些车辆届时将在摩天轮旋转到底端的时候在旁边与其同速行驶，以便乘客可以进入或者走出这些车辆。
The pedal of its bottom is made of advanced alloy, and the pole and rear-wheel cover are made of high strength steel tube, which looks quite beautiful and firm.
车底踏板采用高级合金制造，车杆和后轮盖（刹车）刹车采用高强度钢管制造，美观坚固。
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