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As a private mobile communication system, The digital trunkingmobile communication system was boomed in 1990's, and before this, the appliedprivate mobile communication systems in market are almost the analog systemwith analog voice and digital signalling. And there are no data referring to thesystem design and parameters chosen. It includes the wireless channel accessalgorithm of the mobile terminals, single base station capacity in large regional networks, link designing schemes between the switching control center and basestation as well as the study of the service quality for the multiple traffic. Theseindispensable parameters in design a digital trunking communication system arestudied in this dissertation and some instructive achievements can be got. To provethe correction of the theoretical study, the result was tested with the popularsystem of pan-European digital trunking communication system.

数字集群移动通信系统是九十年代中、后期兴起的专用移动通信系统的一种新体制，在此之前国际、国内市场使用的都是数字信令、模拟话音集群移动通信系统其涉及领域是模拟体制，对数字集群的系统设计的有关参数、方法等的选用及其性能表现并无成熟的文献可供参考，如移动终端的无线信道接入算法、大区组网单基站系统的容量、基站和交换控制中心间的链路设计和多业务种类的服务质量等都是数字集群基站子系统进行设计和开发必须解决的关键技术。

The bridge wireless monitoring in war is put forward and the wireless digital transmission is designed and tested.

提出了建立战时无线监测系统的技术方法，进行了无线数字传输的设计和实验测试。

The Soviets tested a number of deadly poisons on prisoners from the Gulag ("enemies of the people"), including mustard gas, ricin, digitoxin and many others.

苏联将芥子气、蓖麻蛋白、洋地黄毒苷等致命毒药应用于Gulag身上。

The properties and structures have been investigated as well by X-ray diffraction, infrared absorption spectrum and differential thermal analysis. The solvent dilatability and gelation ability, viscidity and organic content have been tested.

以十六烷基季铵盐为有机化改性剂，用微波辐射加热的方法制备出了性能优良的有机膨润土，利用XRD、FT-IR、DTA等方法分别对合成的钠基膨润土和有机膨润土的结构进行了研究和表征；并初步测试了有机膨润土的溶胀性、凝胶性能、粘度和有机物含量。

The macroscopic hardness, microscopic hardness, tensile capability and press capability of fine grain samples were tested. In addition, the ultra fine grain material''s thermo-stability, mechanical capability and dilatability were studied.

分析了所得到的细晶材料的外观形貌、金相组织和透射电镜形态，测量了细晶材料的微观和宏观硬度、拉伸性能、压缩性能，并研究了超细晶材料的热稳定性、力学性能和热膨胀性能。

The CCT curves of two kinds of steels were tested with heat dilatometer at different cooling rate. Corresponding microstructures were observed with LASER microscope.

采用热膨胀法测试试验钢不同冷速下的连续冷却转变曲线，用40MAT型激光显微镜观察相应的显微组织转变特征，并进行硬度及强度测试。

Methods Acˉcording to the standard YY0290"Intraocular Lens",dioptric power,differentiate rate,axial displacement under presˉsure and optical eccentric distance of10types of intraocularlens were tested.

按照行业标准YY0290《人工晶体》规定的方法对国内外10种一件式或三件式人工晶体的屈光度、分辨率、压缩力下轴向移位和光学偏心等指标进行了测试。

The long adaptations of Dioscorea zingiberensis type low-light intensity to 10, 55, 100 and 270μmolm^(-2)s^(-1) light were tested.

对生长在10，55，100，270μmolm^(-2)s^(-1)光强下弱光生态型盾叶薯蓣的长期适应性进行了测定。

Puppies should be tested before 12 weeks of age, if possible, by a Diplomate of the Association of Canine Veterinary Ophthalmologists because some dogs have a mild form of the disease called "go normal", where normal tissue grows over and covers up the diseased area as the dog matures.

幼犬在12周前最好交由获得犬类兽医协会证明的专业眼科医师进行检测，因为部分犬当到了成熟期时会因为正常组织的生长而慢慢覆盖患病区域，疾病从而获得一种轻微的形态称之为"恢复正常"。

Deng Xiaoping (1904-1997) was a great Marxist, proletarian revolutionist, statesman, strategist, diplomatist, and long-tested communist warrior. He was the chief architect of China's socialist reform, opening-up and modernization, and was the major founder of the Deng Xiaoping Theory.

邓小平（1904——1997），伟大的马克思主义者，伟大的无产阶级革命家、军事家、外交家，久经考验的共产主义战士，中国社会主义改革开放和现代化建设的总设计师，邓小平理论的创建者。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷