·2,447,543篇论文数据，部分数据来源于NoteExpress
In standing wave method, the sound is not perfect standing wave, so the swing is not zero at wave knot.
驻波法中形成的声场不是理想驻波场，且波节处振幅不为零。
The measurement of sound speed in the air is studied in the experiment by phase comparison method and standing wave method.
通过实验，应用相位比较法和驻波法对空气中的声速测量进行了研究。
F ROM above, a method to realize the testing of cable partiality online by ultrasound standing wave is advanced.
在此基础上本文提出了利用超声驻波的方法实现电缆偏心在线检测。
应用推荐