视场光阑是安装在目镜镜筒内的金属的圆环用来限定范围的大小。

The field stop is the metal ring inside the eyepiece barrel that limits the field size.

youdao

视场光阑是安装在目镜镜筒内的金属的圆环用来限定范围的大小。

The field stop is the metal ring inside the eyepiece barrel that limits the field size.

youdao