计算结果表明，二元透镜在平场光学系统中具有实用价值。

The calculated results show that the binary lens has practical application value in field flattening optical system.

youdao

计算结果表明，二元透镜在平场光学系统中具有实用价值。

The calculated results show that the binary lens has practical application value in field flattening optical system.

youdao