downlightsCOCA¹⁷²⁴¹⁷BNC⁶⁵¹⁰³ 基本例句 n.射灯downlight的复数原型downlight的复数 All fixtures, including three- protection fixtures, grill fixtures and anti- fog downlights, are specifically designed for metro stations and supplied by Yangye Lighting. 灯具为扬业电器的地铁专用的三防灯、格栅灯盘、防雾筒灯。 shejis