Fiber optics are central to another big upgrade of radio telescopes in Europe.
在欧洲，使用光纤是射电望远镜另一项大型升级的重点。
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A different stain marks nerve cell fibers (bottom), revealing heavy staining in the central region where nerve fiber tracts connect one region of the brain to another.
Based on the supercell overlapping method the full vector model was adopted to model polarization properties of elliptical-hole photonic crystal fiber (EHPCF) with central defect hole.