Exclusive optical lensing, good Color uniformity.

独特的光学系统，色度均匀。

Observations of lensing, such as these, can be used to "weigh" clusters.

观察透镜，如这些，可以用来“权衡”集群。

Gravitational lensing occurs because gravity, as Einstein showed, bends light.

引力透镜效应(注2)的产生是因为引力会改变光路，正如爱因斯坦提出的那样。

But gravitational lensing had never before been used in such a precise way.

但是引力透镜还从未以如此精确的方法被使用过。

Also a method to dynamically compensating the thermal lensing is discussed.

提出一种动态补偿热透镜效应的方法，分析了其可行性。