As a new technique, much work is needed to theoretically study its principle and application.

电磁声发射技术是一个新技术，对其产生机理以及应用的理论分析是非常有必要的。

youdao

As a new technique, much work is needed to theoretically study its principle and application.

电磁声发射技术是一个新技术，对其产生机理以及应用的理论分析是非常有必要的。

youdao