后根受损除了因相应支配区域感觉兴奋传入通路中断出现感觉丧失，还由于运动反射弧的完整性破坏，会引起肌肉运动功能失常。
Damage on dorsal roots lead to sense-conducting pathway interruption, as well as to exercise function and coordination ability disorder.
配置在超声波束通路中的随机相位屏的主要技术作用中断通过该屏的声波的干涉。
The major technical effect of the presence of the random phase screen in the ultrasonic beam path is the disturbing of the coherence of the wave traversing the screen.
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