focal length
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跟optics有關的英文翻譯
These lenses have positive focal lengths, converge incident light that form both real images and virtual images這些...
光學透鏡的一些句子翻譯
Like plano-convex lenses, double convex lenses have positive focal lengths and form both real and virtual images. Symmetry is assured...
[英文]請教一下英文文法!!
... between C of A and D of B and twice of the focal length of B. 當然也有其他的合併方式，但第一句的句型會改變，改變後合併...