即是镜头光圈与影像平面之间的距离。
It is the distance between the lens diaphragm and the image plane.
暗箱：制版照相机上可以伸缩的部份，它连接起镜头和影像平面。
Camera extension: the length of bellows in a process camera. It is the distance between the lens diaphragm and the image plane.
正是在那，他与他的研究人员一起将用于半导纤维的技术-影像平面印刷技术与组合化学嫁接到了一起。
There, he and his colleagues devised a scheme to marry photolithography, a technology used in semiconductor fabrication, to combinatorial chemistry.
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