агол на зрак

агол на зрак

The angular dimension of the cone of light from reflectorized lamps (such as R and PAR types) encompassing the central part of the beam out to the angle where the intensity is 50% of maximum. The beam angle sometimes called "beam spread" is often part of the ordering code for the reflectorized lamps. Example: The 50PAR30/HIR/NFL25 is a 50 watt PAR30 narrow flood lamp with a beam angle of 25 degrees (See FIELD ANGLE).

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분야/도메인: 빛과 조명
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Company: GE
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зрак

교육; SAT 어휘

A faint, wavering, unsteady light.

зрак

천문학; 행성학

Streak of material blasted out and away from an impact crater.

агол

수학; 기하학

the union of 2 rays that have the same endpoint; measured in degrees or radians (trig.); the five types of angles are zero, acute, right, obtuse, and straight.

на

언어; 사전

Function words; preposition; touching a surface or an object.

систем

빛과 조명; 조명 제품

A term referring to the lamp and ballast combination, and sometimes to the entire lighting delivery system including the fixture, the optics, the particular layout and the ...

ултра

빛과 조명; 조명 제품

A common way of referring to high efficiency GE T8 family of lamps that perform better than standard T8 lamps. Also refers to the system.

визуелна задача

빛과 조명; 조명 제품

The task associated with seeing; objects and details that must be seen to perform an activity.

волт

빛과 조명; 조명 제품

A measure of "electrical pressure" between two points. The higher the voltage, the more current will be pushed through a resistor connected across the points. The volt ...

напон

빛과 조명; 조명 제품

A measurement of the electromotive force in an electrical circuit or device expressed in volts. Voltage can be thought of as being analogous to the pressure in a waterline.

вати

빛과 조명; 조명 제품

A unit of electrical power. Lamps are rated in watts to indicate the rate at which they consume energy. (See KILOWATT HOUR).

뉴스 속의 용어

Канада Ден

Канада ден го слави на Сојузот на трите британски колонии (Нова Шкотска, Њу Бранзвик, и провинција на Канада) во она што е денешна Канада. Британскиот ...