... valveless pump 无阀泵 valveless tire 无气门轮胎 valvelet 小阀 ...
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有内胎式轮胎气门是直接做在内胎上的，无内胎式轮胎的气门安装在轮毂上。
On the tire with an inner tube, the valve is mounted on the tube. On the tubeless tire, the valve is mounted on the wheel rim.
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