The article begins with a brief discussion on the present status of local SDH transmission networks,which is followed by fairly detailed descriptions of the hierarchical and ring network structures,the computations of the regenerative sections in equipment allocations,network synchronization and the conditions for their applications.
文章分析和讨论了本地同步数字体系(SDH)传输网络的现状,对分层式网络结构、环网络结构、设备配置中再生段的计算和网络同步问题,及其应用条件作了较为详尽的描述,并从实用的角度对如何组织SDH网络进行了分析,对本地SDH传输网络的发展和规划作了深入浅出的论述,最后强调了传输网络规划在通信网建设中的重要性。
Studies on Regeneration of the Fragments, Isolation and Developments of Protoplasts, Collection and Culture of Cystocarps and Tetrasporophytes from Gracilaria Lemaneiforms;
龙须菜切段再生、原生质体分离培养及果孢子与四分孢子的收集和培养的研究
Studies on Setting up the Regenerate System of Leaf and Stem Slice of Apple (Malus Pumila Mill.);
苹果离体叶片和茎段切片再生体系建立的研究
The single crystal is sectioned and then sliced and subsliced with a diamond.
用金刚石锯先将单晶体切成段,再切成片。
In the US, one experiment in nerve regeneration involves cutting a big nerve in a rat's leg, leaving its leg paralysed.
在美国,进行一次神经再生实验要在兔子腿上切掉一大段神经,结果就把它的腿弄瘫痪了。
stacked reaction zone
重叠式反应段,连续再生式反应段
SEGMENTAL RESECTION OF THE UPPER LIMS AND REPLANTATION OF ITS DISTAL PART FOR TREATMENT OF TUMOR REPORT OF 3 CASES
上肢肿瘤段切除与远侧肢体再植术(附3例报告)
Establishment of Rapid Propagation System of Aerial Root Segments of An-thurium andraeanum Linden in vitro
红掌气生根根段再生快繁体系的建立
Induction of Multiple Buds from Stem Segments Of Eremochloa ophiuroides and Its Plantlet Regeneration
假俭草茎段丛生芽的诱导及植株再生
Mankind have been trying every means to maintain the balance of nature.
人类采用一切手段保持生态平衡。
Adventitous shoot regeneration from internode transverse thin cell layers of cut spray chrysanthemum.
多头切花菊节间横切薄层不定芽再生的研究
Research on the Nonlinear Dynamics Analysis of Regenerative Tool Chatter
再生型切削颤振的非线性动力学分析
Studies on the Regeneration System from Sour Jujube Leaves and Adventitious Bud Regeneration from Vitro Non-bud Stem of Ziziphus Jujuba Mill. 'Fupingdazao'
酸枣叶片再生和阜平大枣无芽茎段再生不定芽的研究
THE EFFECT OF MICROBIAL FERMENTS ON LIVER REGENERATION IN THE PARTIALLY HEPATECTOMIZED RATS
微生物酵素对部分肝切除大鼠肝再生的作用
Effect of Shark Hepatic Regenerative Factor on Rat Liver Regeneration After Partical Hepatectomy
鲨鱼肝再生因子对大鼠肝部分切除后再生的影响
Large DNA molecules are first dissected with restriction enzymes to produce specific fragments.
首先用限制性内切酶将大的DNA分子切断,产生出特殊的片段。
Earnestly Strenthening the Students Ideological and Political Work at the Preparatory Stage;
切实加强预科阶段学生的思想政治工作
Effects of Peripheral Nerve Allograft with Different Time Subcutaneous Pres-ervation on Nerve Regeneration;
不同时段异体神经片段皮下包埋对神经再生影响的实验研究
A Further Argumentation of the Literary Phase and Non-Literary Phase in Classical Drama--A Response to Ankuis Criticism;
再论古典戏曲的文学阶段与非文学阶段——答安葵先生
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