- radian measure
- 弧度法
English-Chinese electricity dictionary (电气专业词典). 2013.
radian measure
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radian measure — radianinis matas statusas T sritis fizika atitikmenys: angl. circular measure; radian measure vok. Bogenmaß, n; Radiantmaß, n rus. дуговая мера, f; радианная мера, f; радианная мера угла, f pranc. mesure d’arc, f … Fizikos terminų žodynas
Radian — For other uses, see Radian (disambiguation). mrad redirects here. For millirads, see Rad (unit). An angle of 1 rad … Wikipedia
radian — (rad) a unit of angle measure widely used in mathematics and science. One radian is the angle at the center of a circle that cuts off an arc of length equal to the radius. Since the circumference equals 2 pi times the radius, one radian equals … Dictionary of units of measurement
radian — /ray dee euhn/, n. Math. the measure of a central angle subtending an arc equal in length to the radius: equal to 57.2958°. Abbr.: rad [1875 80; RADI(US) + AN] * * * … Universalium
radian — noun In the International System of Units, the derived unit of plane angular measure of angle equal to the angle subtended at the centre of a circle by an arc of its circumference equal in length to the … Wiktionary
radian — ra•di•an [[t]ˈreɪ di ən[/t]] n. math. the measure of a central angle subtending an arc equal in length to the radius: equal to 57.2958° Abbr.: rad • Etymology: 1875–80 … From formal English to slang
circular measure — radianinis matas statusas T sritis fizika atitikmenys: angl. circular measure; radian measure vok. Bogenmaß, n; Radiantmaß, n rus. дуговая мера, f; радианная мера, f; радианная мера угла, f pranc. mesure d’arc, f … Fizikos terminų žodynas
circular measure — /sɜkjələ ˈmɛʒə/ (say serkyuhluh mezhuh) noun the measurement of an angle in radians: 360 degrees = 2π radians; 1 radian = 57 degrees 17.7 minutes …
Scale (map) — The scale of a map is defined as the ratio of a distance on the map to the corresponding distance on the ground. If the region of the map is small enough for the curvature of the Earth to be neglected, then the scale may be taken as a constant… … Wikipedia
List of trigonometric identities — Cosines and sines around the unit circle … 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
