20 词条主页 > 词条 > 拉丁美洲西班牙语 (XL) > eficiencia
eficiencia
The efficiency of a light source is simply the fraction of electrical energy converted to light, i.e. watts of visible light produced for each watt of electrical power with no concern about the wavelength where the energy is being radiated. For example, a 100 watt incandescent lamp converts 7% of the electrical energy into light; discharge lamps convert 25% to 40% into light. The efficiency of a luminaire or fixture is the percentage of the lamp lumens that actually comes out of the fixture (See LUMINOUS EFFICACY).
0
0
完善词条
您想要说什么？
新闻词条
精选词条
Sínodo
Reunión de obispos de una provincia eclesiástica o patriarcado (e incluso del mundo entero, como el Sínodo de los Obispos) que se realiza para tratar ...
