题目：
观察码间串扰和噪声的影响的实验手段是（）。
答案：
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参考答案：从往复泵的工作原理可知排出阀开启越小，排出管阻力越大，则液缸内液体越不易压出，由于活塞往返一次的时间近似恒定，再加上液体的不可压缩性，所以液缸内至出口排出阀那一节管道内压力会升高，造成泵...
观察码间串扰和噪声的影响的实验手段是（）。
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