D. downlighting is used in informal meeting spaces and compact fluorescent pot lights are used where aesthetic considerations and higher light levels are required.
筒灯照明用于非正式会议空间，当有审美的考虑，而且需要较高强度的光照时，会使用小型荧光聚光灯。
D. downlighting is used in informal meeting spaces and compact fluorescent pot lights are used where aesthetic considerations and higher light levels are required.
筒灯照明用于非正式会议空间，当有审美的考虑，而且需要较高强度的光照时，会使用小型荧光聚光灯。
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