- governor handle
- speed adjusting lever
- 调速: speed governing; speed regul ...
- 调速手轮: speed handwheel; speed regulating hand wheel; speed regulating handwheel; speed-regulating hand wheel
- 变速手柄: gear change hand lever; gear-change lever
- 快速手柄: action grip
- 齿轮变速手柄: gear change lever; gear lever
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