sound-variation的意思|示意

One major contributor to the perceived loudness of commercials is that much less variation in sound level occurs during a commercial.

能造成广告这种高音错觉的一个主要的高招是使广告中的音量变化极少。

We applied the finite element method to study the variation of sound absorption structure and performance of rubber material under variable hydraulic pressure.

应用有限元方法计算静水压力变化下几种橡胶吸声结构的形变和吸声性能。

The change of coefficient of variation with range in a surface sound channel was calculated numerically.

并对表面声道中起伏率随距离的变化作了数值计算。

For a fixed sound source depth, the acoustical fields caused by high send frequency has strong sound intensity fluctuation, and their variation is sharp enough in an adjacent range.

对固定的声源深度，发射频率大的声场对应的声强起伏大，且相邻距离处起伏的强度很剧烈；

The wave form and the spectrum of impact force as well as the variation in sound exposure level (SEL) at a fixed point were measured which representing the relative changes of the ringing noise.

对一些板和梁进行了撞击试验，测量了撞击力随时间变化的波形及其频谱。

The variation of sound velocity was more obvious than quality loss. It was concluded that ultrasonic techno…

声速变化比质量损失变化明显，说明超声波法是一种检测混凝土冻融损伤的简单可靠的方法。