Speed down ratio: output speed compare with input speed.

减速比: 输入转速与输出转速之比.

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To solve the Chinese input speed, the author compiled the test system.

本系统主要为解决汉字输入速度测试问题.

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To keep a fixed input speed that is difficult for the disabled people.

但要身心障碍者保持固定的输入速度是非常困难的.

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