The use of commercial devices for reducing radiofrequency field exposure has not been shown to be effective.

使用商业装置来降低射频场接触量，并无证据证明是有效的。

youdao

The use of commercial devices for reducing radiofrequency field exposure has not been shown to be effective.

使用商业装置来降低射频场接触量，并无证据证明是有效的。

youdao