power of a lens是什么意思

用法例句

Correcting the accuracy of non rotating and aspheric lens by controlling the pressure of the polishing die;

自由曲面透镜型面误差的压力抛光修正

The surgery of rhegmatogenous retinal detachment under indirect ophthalmoscope with no hand-held condensing lens;

无手持聚光透镜间接检眼镜下视网膜脱离手术

Selfoc lenses and their application to optical fiber sensing system;

自聚焦透镜及其在光纤传感系统中的应用

The phase computing formula and designing way for the air three-dimensional Rotman lenses are presented.

介绍了二维多波束天线的特点和实现二维多波束的几种方法 ,针对空馈的Rotman透镜推导出了由它馈电的平面天线阵的相位计算公式及设计方法 ,在此基础上成功地实现了空馈透镜的平面天线阵样机 ,并给出了相应的测试结果。

The equipment can be used not only in welding with lens focusing,but also in cutting with off.

6m rad,为TEM00与TEM01的混合模式;三工位光路转换器的使用,提高了工作效率,增加了加工的灵活性;根据焊接和切割具体要求,设计了透镜聚焦和离轴抛物面反射聚焦两种光束的聚焦方式。