The primary purpose of keys, splines , and pins is to prevent relative rotary movement.

的钥匙，样条的主要目的，是为了防止引脚相对的旋转运动。

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Therefore, the key to the disaster prevention was to regulate the key blocks' rotary movement.

因此，控制关键块体的回转运动是防治压架的关键。

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The machine USES inverter controlled rotary movement in the production can be based on the actual need for some adjustment within the optimal speed.

本机旋转运动采用变频控制，在生产中可根据实际需要在一定的范围内调节最佳速度。

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