porro in A Sentence

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    For binoculars with roof prisms only(not needed for Porro prisms).

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    Traditionally other forms of CS have been used, such as extraperitoneal CS or Porro CS.

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    Traditionally other forms of Caesarean section have been used, such as extraperitoneal Caesarean section or Porro Caesarean section.

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    Porro prism binoculars are named after Italian optician Ignazio Porro who patented this image erecting system in 1854 and later refined by makers like the Carl Zeiss company in the 1890s.

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    Porro prism binoculars are named after Italian optician Ignazio Porro who patented this image erecting system in 1854, which was later refined by makers like the Carl Zeiss company in the 1890s.

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    Porro prism binoculars and roof prism binoculars using the Abbe-Koenig roof prism do not use dielectric coatings because these prisms reflect with very high reflectivity using total internal reflection in the prism rather than requiring a mirror coating.

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