为了在有限口径下获得更大的观察范围，医用电子内窥镜广泛采用广角物镜，图象存在较为严重的畸变。

Due to the restriction of the coelom of human organs, wide angle lenses are widely used in the medical electronic endoscope whose images are distorted badly.

youdao

为了在有限口径下获得更大的观察范围，医用电子内窥镜广泛采用广角物镜，图象存在较为严重的畸变。

Due to the restriction of the coelom of human organs, wide angle lenses are widely used in the medical electronic endoscope whose images are distorted badly.

youdao