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caidao737:TRD是什么意思? (2017-08-14 06:52) /e7BW0$1
r90048song:光斑直徑7mm (2017-08-14 17:07) zI'c 'X1,
caidao737:您的传播距离上20米以内?光源尺度为12-14mm? (2017-08-22 15:10) ,5P tB]8&3
r90048song:是的,光源發散角53度 (2017-08-23 09:25) Rge\8H/z
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