查询词典 diffusion constant

In this paper, the author propose an algorithm, called the least-squares despread respread constant modulus algorithm , combines the information of the spreading signal and the constant modulus property of the transmitted signal in the adaptation of the weight vectors.

本文介绍了利用CDMA信号的恒模特性以及用户已知的扩频码来确定2D Rake接收机的加权系数，使用这样一种综合技术构成的算法称为最小二乘解扩重扩恒模算法。

The constant theme pattern and constant Rheme pattern are employed to ensure the cohesion and the completeness of the information.

主位同一型和述位同一型为语篇主要推进模式，使语篇紧凑连贯，交流信息完整。

The fluorinated carbon film will be a potential material as the IC isolation medium, and it is becoming one of the rivalrous candidate medium dielectric constant materials to instead of the SiO2 for the higher density and higher speed IC in the future because of its lower dielectric constant and good thermal stability, the film will increase the speed and efficiency of IC.

含氟碳膜是一种很有应用前景的集成电路用介质材料，其低的介电常数和较好的热稳定性使它可以取代传统的SiO_2作为致密、高速集成电路的金属互连线间的绝缘隔离层，从而提高集成电路的速度和效率。

Society is in a constant progress, Shanghai Shen in constant development.

社会在不断的进步，沪沈在不断的发展。

In this paper,the rate constant and equilibrium constant of the crack reaction of methyl silicane were obtained with the transition state theory and quantum chemistry calculation.

本文采用过渡态理论和量子化学计算方法，首次计算得到了甲硅烷裂解反应的速率常数和平衡常数，并对结果进行了讨论。

According to previously announced programme, Japan Dentsu will integrate China Power Group's three companies in the Internet advertising, online media and business services, namely the Beijing Dentsu Advertising Co., Ltd., Beijing Orient Advertising Co., Ltd., the Shanghai East camp Advertising Co., Ltd. At the same time, Focus Media will also include integration (Allyes - All Yes, Kesi WorldCom, the miracle of creation, Ka Wah's constant, constant - Guangzhou, Shanghai stockwork), its six ad Companies, and interactive network field survey company resources, both owned by sharing technology, databases, business, and so on the strengths and improve the efficiency of use of media resources, provide better customer System Solutions.

据此前公布的计划，日本电通将整合中国电通集团旗下三家公司的互联网广告、网络媒体业务和服务，它们分别是北京电通广告有限公司、北京东方日海广告有限公司、上海东派广告有限公司；同时，分众传媒也将整合包括(好耶-All Yes、科思世通，创世奇迹，嘉华恒讯，广州恒讯，上海网脉)在内的旗下6家广告公司，以及互动网络领域调查公司资源，通过共享双方拥有的技术、数据库、业务能力等方面的优势，提高媒体资源利用效率，为客户提供更好的系统解决方案。

The corrosion rates of iron in 0.5～2N sulfamic acid of 25～70℃ are investigated by the conventional gravimetric method and by chemical analysis, Based on the experimental data,the several kinetic parameters of iron in sulfamic acid have been calculated,such as rate constant,activation energy,frequency factorand another constant,with the empericat equation put forward by Mathur.

本工作用腐蚀失重和化学分析方法研究了铁在0.5～2N 氨基磺酸溶液中，在25～70℃条件下的腐蚀速率。根据这些腐蚀速率数据，利用 Mathur 提出的经验公式计算出铁在氨基磺酸溶液中腐蚀反应的动力学参数 K、B、E和 A。

The relationships among stress, strain, resistance and temperature of NiTi memory-wire and superelastic wire, which are in constant temperature, constant stress and shape recovery, were measured and analyzed. The actuating property of Cu-based spring in three basic conditions was investigated.

对NiTi记忆丝及超弹性丝在恒温拉伸卸载、恒载变温以及形状回复过程中的应力-应变-电阻-温度之间的关系进行了系统的测试和分析；对Cu基螺旋弹簧在三种基本使用状态下的驱动特性进行了研究。

In order to resolve the problem of unconvenient to test and having high error rate during the time constant testing,a new test system of time constant for thermal detector is designed in this article.

为了解决目前热敏探测器时间常数测试中存在的测试不方便，测量误差大的问题，设计了一种新型的热敏探测器时间常数测试系统。

Regarding the density data and acoustic data in logging material as restriction, it also establishes undrilled district log through model seismic inverse, then, calculates elastic constant of rocks, density constant of rocks and even the profile of the following three pressures (pore pressure, caving pressure, fracture pressure). In the end, this thesis can determine safe drilling mud density windows, provide reference for drilling design, guides safe drilling and decreases the occurrence of accident.

将测井资料中的密度数据或是声波数据作为约束条件，通过模型地震反演，构建待钻区域的测井曲线，从而可以用理论和处理手段上比较成熟的测井分析的方法，进行岩石弹性和强度参数的计算，计算地层的三个压力(孔隙压力、坍塌压力、破裂压力)剖面，最终确定安全钻井液密度窗口，为钻井设计提供参考，指导安全钻井，减少钻井事故。

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

All this to say that I'm glad filmmaking hasn't become completely ironic. I can enjoy an ironic film as much as the next person, but they usually involve a message of some sort. One that's delivered in a smirkingly clever way that requires little in the way of talent.

所有这些都是说，我很高兴电影制作没有变成完全讽刺艺术，我可以和下一个人一样享受讽刺电影的乐趣，虽然他们经常会被划归到一定级别，技术方面不需要很高的才能。