精密

In February 2004 are to set up a import and export trading company, main production of the Italian RC Group and the central air-conditioning, are the Group Products in China, importers and distributors, the company also imports Italian UN room precision Clima Italian air-conditioning and room precision air conditioning, heating equipment Toyotomi Japan, Australiaéseries of wine sales in China; and operates various types of luggage, bags of domestic and export business.

上海纪之烁国际贸易有限公司是2004年2月成立的一家进出口贸易公司，主营意大利RC集团产的和中央空调，是集团产品在中国的进口商和经销商，公司同时还进口意大利UN机房精密空调和意大利CLIMA机房精密空调、日本TOYOTOMI冷暖设备、澳大利亚伯南伍德系列红酒在中国地区销售；并经营各类箱包、袋的内销和出口业务。

The precision lathe with high coaxality based on a precision lathe , whose accuracy bas been improved, employs a hollow hydrostatic spindle to hold the workpiece and a contrate gear disc with dividing accuracy .

高同轴度精密车床是在精化过的精密车床的基础上，用空心液体静压主轴装夹零件，用分度精度。5的端齿盘实现工件的掉头加工。

EDG is preponderant distinguishingly in precise, ultra precise machining of super hard, low stiffness, micro parts and other special parts.

电火花磨削加工在超硬、低刚度、微细和其他特殊零件的精密、超精密加工方面具有特殊的优势。

ABSTRACT This thesis is devoted to the study on the characteristics of polymeric film bearings with polymer films electrochemically deposit...

本文研究了表面为聚合物薄膜的球面支承与超精密导轨平面构成的超精密测试导轨滑动副的摩擦与磨损性能。

This paper focuses on how to calculate GPS satellite orbit parameters through IGS data. Choosing a group of appropriate parameters, and the relationship between satellite position in ITRF and these parameters are founded, and these parameters can be estimated using some successive ephemerides. Three different methods are introduced detailedly.

本文以IGS精密星历为基础，深入研究了利用精密星历计算GPS卫星轨道参数的模型与方法，并对三种不同的计算方案进行了比较研究，其目的是寻找一种合适的计算方法，得到能够正确反映一个较长时间段内(如800天)轨道参数随时间变化的规律。

In order to meet customer demand for a wide range of precision Adhesive Products, the company has introduced advanced automatic die-cutting, slitting, processing equipment, the establishment of 10,000 purification plant can be the most efficient service for the customer design, processing, sophisticated and have special specification needs heterotypic stamping tape products, which are widely used in mobile phones, LCD, PC, MP3 and other manufacturing industries.

为满足客户对精密胶粘制品多元化的需求，公司引进了先进的自动化模切、分切、加工设备，建立了万级净化车间，可以用最快捷的服务方式为客户设计、加工精密及有特殊规格需求的胶带异型冲压产品，这些产品广泛应用于手机，LCD、电脑、MP3等制造行业。

The presentation will outline stability analysis and simulation results to demonstrate the effectiveness of the hydrostatic shoe in lobing and chatter control.

张璧博士的专业研究领域在精密加工，他的主要成就在于精密磨削和先进工程材料加工，包括先进陶瓷技术和纳米结构图层。

Department of Precision Instruments and Mechanology,State Key Laboratory of Precision Measurement Technology and Instrument,Tsinghua University,Beijing 100084,China

清华大学精密仪器与机械学系精密测试技术及仪器国家重点实验室，北京 100084

1Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing 100044, China; 2Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China

北京大学人民医院骨与软组织肿瘤治疗中心，清华大学精密仪器与机械学系，北京大学人民医院骨与软组织肿瘤治疗中心，清华大学精密仪器与机械学系

We establish measurement twice on micro shift for testing superprism effect. And the "thin film gratings" measurement, which we adopt finally, has critically tunable monochroic system, collimated system and exact system for spot detection, realizing detect the micrometer-level shift of reflective and transmissive spots with high sensitivity and precision, and is useful for studies on dispersive device with high resolution.

为了更好地对超棱镜效应进行测试，本文先后两次搭建了微位移测试平台，尤其是最后采用的&光学薄膜光栅&超色散测试系统，采用精密可调的单色系统、小光束准直系统以及精密光斑位置检测系统，实现高灵敏度、高精度的反射光斑及透射光斑的位置检测，为超分辨色散器件的研究奠定了基础。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。