viewing lens的意思|示意

One limiting factor is the viewing Angle, which is comparable to using a camera lens: a telephoto lens has a narrower view than a wide-angle lens.

限制因素之一就是观察角度，这与使用照相机的情况类似：长焦镜头的视野比广角镜头的观察角度要窄得多。

But lacking better options, many still saw the world through the lens of the prudent hypothetical, viewing everything as possible and nothing as certain.

但因为缺乏更好的选项，许多人仍然通过谨慎假设的镜头看待这个世界，认为一切都是可能的，没什么事是确定的。

One way to get the best of both worlds is to use GRDDL, a system for viewing XML through an RDF lens.

集两者之大成的方法之一就是使用 GRDDL，一种通过 RDF 的视角查看 XML 的系统。