| 摘要 |
<p>The reflector is designed for industrial use and has an inverted W-section which may be fabricated as one piece. The central part of the reflector is deep enough to house the power supply ballasts etc. for the fluorescent tubes, the ballasts etc. being mounted on a flat plate. The reflector body may be pivotally mounted on the plate. The reflector may be designed for two, four or six fluorescent tubes.</p> |
