例句與造句

1. Plasma lamps typically have luminaire efficiencies exceeding 90 %.
2. High intensity discharge lamps have typical luminaire efficiencies of 55 %, and fluorescent lamps of 70 %.
3. The " system efficiency " for a High Efficiency Plasma lamp is given by the last three variables, that is, it excludes the luminaire efficiency.
4. Many modern plasma lamps, such as those manufactured by Ceravision and Luxim, have very small light sources far smaller than HID bulbs or fluorescent tubes leading to much higher luminaire efficiencies also.
5. However, full cutoff fixtures may also trap more light in the fixture than other types of luminaires, corresponding to lower luminaire efficiency, suggesting a re-design of some luminaires may be necessary.
6. It's difficult to find luminaire efficiency in a sentence. 用luminaire efficiency造句挺難的
7. It is given by the product of luminaire efficiency ( EFF ) times total rated lamp output in lumens ( TLL ) times ballast factor ( BF ), divided by the input power in watts ( IP ):