The sound quality loss的意思|示意

Lastly, one more annoying effect of high relative humidity on the guitar is the loss of sound quality as the instrument distorts, coupled with a definite decrease in the string life.

最后要说的也是最令人不满的问题，高相对湿度使乐器变形，音质降低，琴弦寿命变短。

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。