Copper clad laminates ( CCLs) with high performance based on modified polytetrafluoroethylene ( PTFE) were prepared by using blended tetrafluoroethylene and hexafluoropopylene ( FEP) as the modification resin.

Thermal, mechanical, dielectric properties and moisture absorption performance of CCLs were improved with the increase of cyanate content.

覆铜板的热学、力学、介电等性能随着随氰酸酯含量的增加均得到改善。

The structural nature of NCCS+, CNCS+ and CCNS+ was investigated, which are three stable linear isomers of the [ N, C, C, S]+ system and should be kinetically stable and experimentally observed provided that accurately experimental conditions are available.

NCCS+，CNCS+和CCNS+是[N，C，C，S]+体系中的三个动力学和热力学上稳定性较高的异构体，在精确的实验条件下是可以观察到的。

A combined density functional theory and coupled cluster method investigation on the structural nature of NCCS~+, CNCS~+, and CCNS~+

NCCS~+，CNCS~+和CCNS~+异构体结构的密度泛函与耦合簇方法研究（英文）

Ccns: a microcomputer communication network system

CCNS微机通信网络系统

Effectiveness of Nanometer Silicate Addiitive ( CDAA) to Reduce the Retention of Cadmium and Its Adverse Effects in Growing/ Finishing Pigs

纳米硅酸盐添加剂（CDAA）吸附饲料镉的研究

Volunteers are recruited and trained to act as family Befrienders to maintain regular contacts with the families and assist them in meeting the objectives of the CDAC workfare programme.

华助会将招募和培训义工担任义务家庭辅导员，定期与个案家庭保持联系，以协助他们达到华助会就业援助计划的目的。

Based on electronic scan constant difference amplitude comparison direction measurement ( CDAC) theory, the error formula of constant different amplitude comparison direction measurement in radar interception system of UAV is discussed under the condition of decoy.

在分析电扫恒差比幅测向原理的基础上，讨论了设置诱饵情况下无人机截获系统测向的误差；

The graphic lines represent the two parties for which the CDAC is striving to help: the less capable and lower income group and the academically weak students.

图案线条代表了自助会的两个协助对象：工作能力及收入低的人士和成绩不理想的学生。

CDAC sponsorship is for the course fees.

华助会的赞助只限学费。

The clinical manifestation of CDAD is complicated, ranging from Symptomless carrier to life-threatening pseudomembranous colitis.

CDAD临床表现复杂多样，从无症状携带者到爆发性结肠炎。

Experiments show that the CDAD method can extract features of DDoS attack flows from abnormal flows and can recognize the DDoS attack rapidly and effectively.

实验结果表明，CDAD方法能有效地从可疑流中提取DDoS攻击流的特征，能快速、准确地检测DDoS攻击。

The incidence of CDAD has an increasing tendency in China with the development of industry and universality of using antibiotics.

随着我国工业的进一步发展以及人们对抗生素的使用日益普遍，其发病率有增加的趋势。

Coated dialdehyde starch ( CDAS) was prepared by coating aldehyde groups on the surface of dialdehyde starch.

氧化淀粉经表面覆醛处理以后，制成覆醛淀粉（CDAS）。

The problems of CDAS for C satellite were solved and adaptability adjustment was completed during the periods of on-orbit test and experimental operation.

在轨测试和试运行期间，C星的CDAS不仅解决暴露的问题，而且进行适应性调整。

This thesis proves that this problem is NP-complete, and proposes two approximation algorithms called SDAS and CDAS respectively.

本文证明该问题是NP完全问题，并提出了两种近似算法SDAS和CDAS。

The design of CDAS 20m antenna subsystem

CDAS20m天线分系统设计

Intermediate frequency tracking and telemetry receiver of CDAS

CDAS中频跟踪遥测接收机

The Synchronous timer is used as a major Component of the CDAS S/ DB System.

同步定时器是CDASS／DB系统的重要部件。

On foundation construction of CDAS station aerial

CDAS站天线基座建设

The results reveal that senior-high-students affirm the advantages also indicate the defects of CDBS.

结果表明：盲校高中学生充分肯定双拼盲文优越性的同时也指出了双拼盲文本身存在的问题；