vertical refraction

vertical refraction
1) Техника: вертикальная рефракция
2) Макаров: вертикальная рефракция (звука)

Универсальный англо-русский словарь. . 2011.

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  • Vertical plane — is used in radio to plot an antenna s relative field strength perpendicular to the ground (which directly affects a station s coverage area) on a polar graph. Normally the maximum of 1.000 or 0 dB is at the side (unless there is beam tilt), which …   Wikipedia

  • Near Vertical Incidence Skywave — An NVIS antenna configuration is a horizontally polarized radiating element. Near Vertical Incidence Skywave, or NVIS, is a radio wave propagation method that provides usable signals in the range between groundwave and skywave distances (usually… …   Wikipedia

  • Levelling refraction — refers to the systematic refraction effect distorting the results of line levelling over the Earth s surface.In line levelling, short segments of a line are levelled by taking readings through a level from two staffs, one fore and one behind. By… …   Wikipedia

  • Index of refraction — Index In dex, n.; pl. E. {Indexes}, L. {Indices}(?). [L.: cf. F. index. See {Indicate}, {Diction}.] [1913 Webster] 1. That which points out; that which shows, indicates, manifests, or discloses; as, the increasing unemployment rate is an index of …   The Collaborative International Dictionary of English

  • Weather radar — in Norman, Oklahoma with rainshaft …   Wikipedia

  • History of Physics —     History of Physics     † Catholic Encyclopedia ► History of Physics     The subject will be treated under the following heads: I. A Glance at Ancient Physics; II. Science and Early Christian Scholars; III. A Glance at Arabian Physics; IV.… …   Catholic encyclopedia

  • Corrective lens — A bifocal corrective eyeglass lens A pair of contact le …   Wikipedia

  • optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… …   Universalium

  • Glossaire De La Météorologie — Portail de la météorologie Glossaire de la Météorologie Sommaire : Haut A B C D E F G H …   Wikipédia en Français

  • Glossaire Météorologique — Glossaire de la météorologie Portail de la météorologie Glossaire de la Météorologie Sommaire : Haut A B C D E F G H …   Wikipédia en Français

  • Glossaire de la meteorologie — Glossaire de la météorologie Portail de la météorologie Glossaire de la Météorologie Sommaire : Haut A B C D E F G H …   Wikipédia en Français


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