通信工程师考试试题检测(转及收集)

maniaclvchao

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 10.2pt; TEXT-INDENT: -10.2pt; mso-list: l0 level1 lfo1; tab-stops: list 21.0pt;"><font face="Times New Roman"><span lang="EN-US" style="mso-fareast-font-family: 'Times New Roman';"><span style="mso-list: Ignore;">8、<span style="FONT: 7pt 'Times New Roman';">&nbsp;&nbsp;&nbsp; </span></span></span><span lang="EN-US">SDH</span></font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';">技术中当网络处于同步工作状态时，指针用来进行同步信号间的相位调整；当网络处于失步时，指针用作频率和相位校准。</span></p><br/><br/><br/><br/>

[此贴子已经被编辑于2007-10-16 17:17:24编辑过]