通过对光强不对称的改进，该方法有光路简单，无能量损失的优势。

Comparing with other improvement, this method is superior in simple optical path and no additional energy loss.

youdao

通过对光强不对称的改进，该方法有光路简单，无能量损失的优势。

Comparing with other improvement, this method is superior in simple optical path and no additional energy loss.

youdao