Rotary encoders convert a mechanical input into electrical signals, which can be processed by counters, tachometers, programmable logic controllers and industrial PCs.

旋转编码器转换成机械和工业PC输入成电子信号，控制器可处理的计数器，转速表，可编程逻辑。

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For any machine whose input force and output force are known, its mechanical advantage can be calculated.

如果机器的输入和输出功率已知，他的机械效率就可以计算。

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However, the greater the displacement of the input shaft axis from the crown wheel axis, the lower the mechanical efficiency.

然而，更大的车轮从冠轴输入轴轴线位移，机械效率降低。

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The result is a seasonal strategy that allows whatever is going on at the time, primarily whether the market remains in rally mode or not, to influence the entries and exits, while maintaining the mechanical aspect that avoids usually wrong emotional input.

FORBES: Sell In May Could Still Come Into Play But Don't Bail Now

It maintains the mechanical aspects of Sell in May, avoiding emotional input, but incorporates a simple and well-known short-term technical indicator, MACD, to identify whether the market is still in correction mode when the entry date arrives in the fall, and whether it is still in rally mode when the calendar exit date arrives in the spring.

FORBES: Sell In May Could Still Come Into Play But Don't Bail Now

To fully emulate the human leg will involve motors, the mechanical equivalent of muscles, and electrical sensors that gather the same input as the human nervous system.

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