使用齿轮皮带传动结构，将噪音降至最低，机械运转更为轻巧。
Use gear belt transmission, lower the noise, machine sewing more smoothly.
对于采用定时齿轮皮带，这是一个非常经济而可行的做法(前提条件是TBR很短，而且不做超过500英里的跨海飞行)。
As for using a timing belt gear, this is very economical and feasible if you respect a short TBR... and do not plan to cross 500 miles of sea.
皮带上有齿，或者槽以啮合并且驱动传动齿轮上的齿。
The belts have teeth, or slotted Spaces to engage and drive teeth on gear wheels.
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