底层镜子下的一个微型机电开关也能抬高镜子，从而调节间距并防止镜子反射任何光。
A tiny electromechanical switch under the bottom mirror can also lift it up, adjusting the spacing and preventing it from reflecting any light at all.
高速数字系统的信号完整性问题主要为反射、串扰、延迟、振铃和同步开关噪声等。
The main problems of signal integrity of high-speed digital system include reflection, crosstalk, delay, ringing, simultaneous switch noise, etc.
文中也给出了几组曲线，适用于全内反射型开关的设计。
Some curves are also given which are suitable to the design of TIR switches.
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