The first assumption relates to the measurement environment, namely that it is occurring in free space. Reflections from nearby objects, or the attenuation of the signal by anything other than distanc ...
EN55032标准将取代舞台灯标准EN55103-1
Implementation Dates
date of Ratification (DOR) (1)2012-11-05date of Availability (DAV) (2)2012-11-30date of Announcement (DOA) (3)2013-05-05date of Publication ...