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5kM发送响度评定值(db)≥4≤15接收响度评定值(db)≥-7≤2侧音掩蔽评定值(db)≥4≥126.通信距离15kM7.通话频率:300-3400hz8.安全栅本安侧参数:最
http://blog.alighting.cn/dongyagk200910/archive/2010/9/25/99402.html2010/9/25 14:33:00
道夹板|24kg绝缘道夹板|30绝缘道夹板 主要生产各种道夹板,8kg道夹板,9kg道夹板,12kg道夹板,15kg道夹板,18kg道夹板,22kg道夹板,24kg道夹板,30k
http://blog.alighting.cn/zhongmei0901/archive/2010/9/27/100153.html2010/9/27 14:37:00
http://blog.alighting.cn/zhongmei0901/archive/2010/9/27/100154.html2010/9/27 14:37:00
http://blog.alighting.cn/zhongmei0901/archive/2010/9/27/100155.html2010/9/27 14:38:00
http://blog.alighting.cn/zhongmei0901/archive/2010/9/27/100156.html2010/9/27 14:38:00
http://blog.alighting.cn/zhongmei0901/archive/2010/9/27/100157.html2010/9/27 14:38:00
http://blog.alighting.cn/zhongmei0901/archive/2010/9/27/100158.html2010/9/27 14:38:00
-137, as2-04, as2-07, as2-15, as2-22, as2-37, as2-104r, as2-107r, as2-115r, as2-122r, as2
http://blog.alighting.cn/lili8888/archive/2010/10/6/102076.html2010/10/6 10:07:00
http://blog.alighting.cn/lili8888/archive/2010/10/6/102078.html2010/10/6 10:07:00
品。led芯片占15%比重还是很合理的,今后还会继续维持在这个水平。 led封装成本占相当的价格比重,大概在50%,我们必须要选择更合适的led封装结构。cree
http://blog.alighting.cn/mixseven/archive/2010/10/19/108913.html2010/10/19 14:47:00