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目前在通信方面,在這么通信工程的時(shí)候,遇到不少企業(yè)在租借E1(2M)線路利用PCM設(shè)備傳輸語音電話、音頻等業(yè)務(wù)??赡艽蟛糠制髽I(yè)只對(duì)E1線路帶寬了解,而E1線路的具體知識(shí)點(diǎn)還是不太了解。1、一條E1是2.048M的鏈路,用PCM編碼。2、一個(gè)E1的幀長(zhǎng)為256個(gè)bit,分為32個(gè)時(shí)隙,一…
2024-4-30 6:41:23[未知IP0801]網(wǎng)友
歐洲杯汽車盲盒開箱['http://hongjizs.com/jingyutiyu3805.html', 'http://borehome.com/dq4659.html', 'http://lsytrade.com/kok9630.html', 'http://soulouba.com/dq1947.html', 'http://cxzgtv.com/post/1415.html']
2024-4-30 6:31:27[未知IP0801]網(wǎng)友
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2024-4-30 6:21:56[未知IP0801]網(wǎng)友
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2024-4-30 6:11:21[未知IP0801]網(wǎng)友
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2024-4-30 5:40:18[未知IP0801]網(wǎng)友
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2024-4-30 4:52:19[未知IP0801]網(wǎng)友
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2024-4-30 4:47:44[未知IP0801]網(wǎng)友
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2024-4-30 4:37:09[未知IP0801]網(wǎng)友
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2024-4-30 4:26:34[未知IP0801]網(wǎng)友
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2024-4-30 3:55:10[未知IP0801]網(wǎng)友
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2024-4-30 3:34:42[未知IP0801]網(wǎng)友
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