Use dimmers where possible except for fluorescent lamps and compact fluorescent bulbs 尽可能使用光暗掣调校灯光（光管及悭电灯泡除外） 。
Lightpipes are produced in quantity and usually resell between a few cents and a few dollars 光管生产量大且通常在几分钱和几元之间转售。
Lightpipes are usually made by filling a metal mold and injecting plastic into it to mold the part 光管通常是由充满金属塑造和对型注入塑胶制造。
It has now been proven that using software simulation reduces lightpipe design costs by 30 to 50 % 现下已经证明使用软体仿真使光管设计费用减少了30 %到50 % 。
This product specification shall apply to different standard copper coils for air conditioning and refrigeration 本规格书适用于空调、冰箱用各种规格的光管。
The elliptical secondary should appear round and well centered in the circular opening of the sight tube 椭圆形的副镜应看上去边缘是圆的，在光管开口处呈现环状。
Best performance usually occurs when the output is funneled using a reflector to focus the source into the light pipe 最好的成效为利用反射器使输出光为漏斗形的聚焦至光管中。
Jc copper is producers of precision , thin - wall copper tube for the air conditioning , heating , refrigeration and industrial markets 目前公司光管的规格为5219 ，塑覆铜管规格为576 。
