查询词典 point system

This dissertation stems from the project "Study on high efficient multi-flow transmission system" which is sub-project of the Natural Science Foundation Key Project "Fundamental study on energy saving of mechanical/fluid transmission and new transmission methods", which mainly analyzes the energy saving issue of mechanical transmission system from the point of view of design theory and method. Multi-flow transmission systems have been widely applied to large mechanical equipment such as creeper truck, helicopter, cement grinder, hoist, wind electricity generator, construction machinery and metallurgy industry.

本文来源于国家自然科学基金重点项目&机械流体传动的节能及新型传动方式的基础性研究&中的子课题&高效多流传动系统的设计理论和方法的研究&，主要是从设计理论和方法的角度分析机械传动系统的节能问题，多流传动系统已广泛应用于大型机械装备，如履带牵引车、直升机、水泥磨机、起重机、风力发电机及工程机械、冶金等行业之中。

The second step:.add nitrogen gas into the system,check whether pressure gauge changed after 24 hours, if the pressure drops, that means sealed system is not good, need to find out the leakage point and repair welding.

第二步，将封好的系统，冲入氮气封好，饱压24小时，看压力表掉压了没有，如果压力下降，证明制冷系统没有封好，需要找出漏点，进行补焊。

Then, the construction techniques of R.C girder transfer floor in high-rise buildings are systematically investigated, three important item about construction of transfer floor: the form board and the carriage system, the joining and colligation of reinforcing steel bars, the casting of large volume concrete are partially analyzed and studied, otherwise, the design principle of the supporting system, the main point on connection of the reinforcing bar and the crack control measures of mass concrete are proposed.

然后，系统的研究了高层建筑钢筋混凝土梁式转换层的施工技术，重点对梁式转换层施工的三大分项：模板和支撑体系、钢筋的连接和绑扎、大体积混凝土的浇筑进行了分析和研究，并提出了支撑体系的设计原则，钢筋的连接要点和大体积混凝土裂缝的控制措施。

The core part of this system development is to turndrawing datum, namely space data, into digital atlas in "ArcView", and then sort thedrawing datum into Point, Line, Polygon theme which user required so that we couldedit and manage these themes. The development process of this system is open. Users can edit and appendinformation at any moment if they want.

ArcView 的突出特色是能够将空间数据和属性数据动态结合在一起，开发过程中核心部分就是将所需的矿上图纸资料作为空间数据导入 ArcView 中形成数字地图并将其分为所需的点、线、面进行编辑管理，然后收集整理与空间数据中各主题相对应的属性表所需的属性信息并进行相应的编辑。

The mathematical model and working modes of a novel three-phase two-arm three-level neutral-point-clamped pulse width modulation rectifier suitable for direct-driving wind power system are analyzed in detail, and the constant frequency control strategies based on space voltage vectors are proposed and applied to the rectification conversion of direct-driven power generation system.

系统分析了新型三相两桥臂三电平中性点箝位脉宽调制(pulse width modulation，PWM)整流器的数学模型和工作模式，提出了基于空间电压矢量的恒频控制策略，并将其应用于直驱风力发电系统整流变换中。

The paper discusses the principle of automatic loading and unloading system of CNC drill point grinder,and design an reliable PLC controlling system through analyzing the mechanism and the process of load-ing and unloading.

论述了数控钻尖磨床自动上下料机构的原理，通过对上下料机构及过程的分析，设计了一种合理可靠的自动上下料及刃磨的PLC控制系统。

By combining mathematical analysis with numerical simulation, we have shown that the Allee effect may be a destabilizing force in predator-prey systems: the equilibrium point of the system could be changed from stable to unstable or otherwise, the system, even when it is stable, will take much longer time to reach the stable state.

由于捕食者或猎物Allee效应的存在，系统的平衡点要么由渐进稳定变为中性稳定或不稳定，要么系统需要更长的时间才能到达平衡状态。

At first This paper formulates the necessity for depurating network information content,and introduces the history of information security and study point in information security.Also this paper analyses in detail the key technology of content filtering such as data frame capture,bridge, network protocol analysis and content analysis.And then this paper comes up with the solution for content filtering facing application layer which is based on the technology of protocol analysis and format conversion in combination with text filtering techonology of Multiple Patterns Matching..Also this paper amplifies on the design and the implement method of each module.Finally this paper introduces how the client of content filtering system manages the keywords and log and makes suggestion for the improvement of the system.

本文首先阐述了对网络信息内容净化的必要性，介绍了信息安全的发展过程以及当前信息安全方面的研究重点，详细分析了内容过滤的关键技术，如数据帧捕获、网桥、网络协议分析和内容分析等方面的技术，然后提出了在Windows2000下实现基于协议分析技术，结合多模式匹配的文本过滤技术，面向应用层的内容过滤解决方案，并给出了内容过滤引擎的详细设计以及各个模块的实现方法，最后介绍了内容过滤系统客户端对有害信息关键词和日志的管理以及对本系统改进的一些建议。

Regarding to Chinese information productions export policy, the government should put important point on the export competitiveness, enhance to introduce foreign capitals, increase innovation ability in Chinese enterprises. Moreover, security system should be built to respond to non-tariff barrier oversea, the external competition environment should be improved. At the same time, we should enhance information productions export motivation system, and make an effort to explore various international markets.

促进我国电子信息产品出口的政策，应通过加强引进外资和提高我国企业自身的创新能力，不断增强我国电子信息产品的出口竞争力；通过建立和完善应对国外非关税壁垒的预警机制，改善我国电子信息产品的外部竞争环境；同时，加强电子信息产品出口激励机制，努力开拓多元化的国际市场。

NET 2003, adoption of the program design language C# and so on, the next introduced natural gas supply monitor system of concrete design process, this part is textual point, emphasize introduction origin system to carry out process, key technical basic principle, give carry out a method and correspond the procedure code and correspond software to cut diagram.

NET 2003、采用的程序设计语言C#等，紧接着介绍了天然气供应监测系统的具体设计过程，这部分作为本文的重点，着重介绍本系统的实现过程，关键技术的基本原理，给出了实现方法和相应程序代码及相应软件的截图。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。