...l Hierarchy SDH 同步数字系列 ; 同步数字体系 DH synchronous digital hierarchy 同步数字系统 Synchronous Digital Hierarchy Technology 同步数码分层技术 ..
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... SDBL sight draft, bill of lading attached 即期汇票，附带提货单 ital hierarchy 同步数字系统 SDR straight discount rate 直线贴现率 ...
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... 同等的，相同的：Equal 同步数字系统：synchronous digital system 通知银行：advising bank ...
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同步数字传输系统 SDH ; Synchronous Digital Hierarchy
高速数字系统的信号完整性问题主要为反射、串扰、延迟、振铃和同步开关噪声等。
The main problems of signal integrity of high-speed digital system include reflection, crosstalk, delay, ringing, simultaneous switch noise, etc.
网同步技术是数字通信系统的关键技术之一，网同步时钟是网同步技术的关键设备。
The network synchronization is one of the key technologies for digital communication and the clock is the most important equipment in the network synchronization.
介绍了IR2172的结构特点和工作原理以及在永磁同步电机数字控制系统中的应用。
The principle and structure of IR2172 is introduced in this paper and also the application of IR2172 in PMSM digital control system is introduced.
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