这架C -级别相对应的级别电流的要求，争取一个相对舒适的响亮，但仍听觉。
The C-level corresponds to the level of the electrical current required to elicit a relatively loud but still comfortable auditory sensation.
这架C -级别相对应的级别电流的要求，争取一个相对舒适的响亮，但仍听觉。
The C-level corresponds to the level of the electrical current required to elicit a relatively loud but still comfortable auditory sensation.
应用推荐