Working distance [计] 工作距离 ; 使用工作距离 ; 事情间隔
image working distance 像运作距离 ; 移像正析摄像管
working distance of microscope 显微镜工作距离
working distance of objective 物镜工作距离
free working distance of objective 物镜自由工作距离
Long working distance ob 长工作距离物镜
Long Working Distance objective 长工作距离物镜
Long working distance condenser 及长工作距离聚光镜
And Working Distance 和工作距离
Convenient 420mm Working Distance 方便420毫米工作距离
Two months before he died, newspapers were reporting that he was working on a "death ray," and that he had "killed a rat with an intricate device at a distance of three feet".
在他去世的两个月前，报纸报道称他正在研究“死亡射线”，并“用一个复杂的装置在三英尺外杀死了一只老鼠”。
If you know the FOV, sensor size, and working distance, you can compute the focal length of the lens you need using the following formula.
如果你知道视野FOV，感应器大小，和工作距离，你能用以下之方程序去计算你所需之镜头的焦距。
A lens is primarily defined by its focal length. Figure 4 illustrates the relationship between the focal length of the lens, field of view, sensor size, and working distance.
一个镜头的基础定义是其焦距，图4图示出镜头焦距，视野，感应器大小，和工作距离间之关系。
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