两个焦距都是10厘米的透镜形成的组合透镜焦距为5厘米。
Two lenses of focal length 10 cm have a combined focal length of 5 cm.
高能X射线组合透镜是一种基于折射效应的新型X射线光学元件。
The compound high-energy X-ray lens is a kind of novel refractive X-ray optical device.
射线聚焦组合透镜是一种利用折射效应对X射线辐射聚焦的新型元件。
The X-ray compound lens is a novel optical device that focuses X-ray radiation by refraction effect.
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