查询词典 debris flow

Details: First, an overview of orifice flow meter is also known as differential pressure flowmeter is determined by a test piece and the second device (differential pressure transmitter and flow indicator), is widely used in gas , steam and liquid flow measurement.

详细介绍：一、概述孔板流量计又称为差压式流量计，是由一次检测件和二次装置(差压变送器和流量显示仪)组成，广泛应用于气体、蒸汽和液体的流量测量。

Because the flow meter orifice pressure by correspondence before the impact of heavy flow, if required flow accuracy of 10%, the valve must be over before the straight section 10d, and this works in practice extremely difficult to protect.

由于孔板流量计的流量压差对应关系受到前流态影响极重，如果要求流量精度达到10%，则必须阀前有10d以上的直管段，而这一点工程实际中极难保障。

In addition, three-dimensional flow analysis is carried out to verify the performance improvement of the new support board. It is found that with the new support board the efficiency of the fan is improved over the entire range of mass flow, the losses are reduced and the flow in support board passage become more reasonable.

并对改进支板后的风机进行了详尽的三维数值模拟计算，计算结果表明采用改型后的支板结构使得在整个流量范围内风机的效率有所提高，支板通道中的分离漩涡等各种流动损失明显减小，支板通道的流动更加合理。

How to analyze the cyclic fluctuation of urban traffic flow theoretically, and how to determinate the cycle of urban traffic flow, those are the problems to be solved. In this paper, a study on long_term dependence of urban traffic flow based on rescaled range analysis is presented. The method is introduced,the analysis results of a case study on time_s...

论文提出用R/S分析交通流的长程相关性来研究这一问题，介绍了该方法的原理，给出了一组实际交通流时间序列的实证分析结果，从计算出的Hurst指数求出了该交通流时间序列的变化周期，讨论了有益的结论。

To reveal aft end internal flow feature of a solid rocket motor with submerged nozzle, a two dimension cold flow test model with rectangular channel was designed The cold gas simulation was based on geometric similarity and aerodynamic analogy Mean and fluctuating velocity field was measured using phase doppler particle analyzer It showed that the flow separates at upstream of the submerged nozzle and reattaches on the tip of the nozzle nose A relatively steady recirculation zone formed in...

为了揭示含潜入喷管的固体火箭发动机尾部流动特征，按照几何相近和气动相似原则设计了通道为矩形的二维冷流实验模型，利用相位多普勒粒子分析仪对燃烧室尾部气流的时均速度和湍流脉动速度进行了测量。实验结果表明气流在潜入喷管入口上游发生分离，再附点位于喷管前端部外侧，背壁空腔内形成一个较为稳定的回流区，流场的轴向和横向湍流强度都比较大

There is no agreement on the HR flow management, especially in the field of HR flow prewarning, there is none of clear standards. These make enterprises at a loss of carrying on the HR flow management.

对人力资源的流动管理更没有统一的认识，尤其是在企业人员流动状态的预警上，没有一个明确的标准，使企业在进行人力资源流动管理时无所适从。

In the paper, based on reading and studying a great number of references about fluid dynamic technique and numerical computing methods of flow field, 3-D Numerical simulations and visual analysis of the flow field in hydraulic poppet valve with inside flow work condition were obtained by CFD software Fluent.

本文在参阅大量国内外有关计算流体力学和流场数值计算方法相关资料的基础上，用CFD软件Fluent对内流工况液压锥阀内部流场进行了三维数值模拟及可视化分析。

LNV oval gear flow meter is a joint venture company with Japan Ao Baer production of high precision flow meter long life can be measured the flow of oil and water.

LNV椭圆齿轮流量计是与日本奥巴尔公司合资生产的高精度长使用寿命流量计可测油及水的流量。

R12 on the ozone layer due to the destruction of the requirements of the developed countries for environmental protection from 1996 to start using refrigerant R134a Automotive Air-conditioning and the construction of air-conditioning at home in a similar, it is often installed in the compressor engine, and with a belt drive, the condenser installed in the car in front of the radiator, and evaporator in the car inside, and work out from the evaporator of low pressure gaseous refrigerant flows through a high-pressure high-temperature gas compressor After cooling condenser cooling tube cooling into the low-temperature high-pressure liquid, through the desiccant dryers and storage of buffer, and then to a more stable flow of pressure and flow expansion valve, the final expenditure and the flow of relief evaporator.

由于R12对大气臭氧层的破坏，出于环保的要求发达国家从1996年开始改用R134a做制冷剂汽车空调的构造和家用的分体空调类似，它的压缩机往往是安装在发动机上，并用皮带驱动，冷凝器安装在汽车散热器的前方，而蒸发器在车里面，工作时从蒸发器出来的低压气态致冷剂流经压缩机变成高压高温气体，经过冷凝器散热管降温冷却变成高压低温的液体，再经过贮液干燥器除湿与缓冲，然后以较稳定的压力和流量流向膨胀阀，经节流和降压最后流向蒸发器。

The problem of noise of the fan is studied with the non-linear theory, and pressure pulsation of axial flow fan's inside flow was measured by dynamic pressure sensor, the gas-structure coupled noise of contra-rotating axial flow fan was studied through a

摘要用非线性动力学的理论对风机噪声问题进行了分析，同时运用实验手段测量了轴流风机流场内部流动的压力脉动，从全新的角度研究了对旋风机的气固耦合噪声。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。