This article mainly talks about how to replace the to-and from swinging movement of hand with a six-pole machine applied by disc rotation.
在研究驱动圆盘式人力收割机时，设想将人手的往复摆动转换为圆盘转动所采用的六杆机构。
The switch position of butterfly disc is limited by the adjusting screw pole on the worm gear transmission device. The indicating device displays the position of the valve switch.
蝶板的开关位置都由蜗轮传动装置上的调节螺杆限位，指示牌指示阀的开关位置。
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