查询词典 message flow

To solve the control problem of micro-flow or low flow on pesticide in the course of variable rate spraying, an electromechanical flow control valve was developed with a miniature pin valve, a direct current motor, and gearset.

采用小型针阀、直流电动机及减速器设计了机电流量控制阀，解决了变量喷雾过程中药液微小流量的控制问题。

Considering a spherical porous carbon particle immersed in a static ambient atmosphere, the combustion characteristics under three basic conditions: frozen flow, equilibrium flow, partial flow are solved in a half-analytical and half-numerical way. By using the LAEA (Large Activation Energy Asymptotic Method), the departure value of some parameters such as combustion rate, temperature, and concentration are obtained. On this basis, the rules of a carbon particle combustion under various conditions when the gas phase Damk〓hler number is in the range of 0,+∞ are summarized.

建立氧化性环境中相对静止的多孔炭粒燃烧的控制方程，采用半解析、半数值方法求解出炭粒在冻结流、部分流、平衡流三种基本情况下的燃烧规律，并采用大活化能渐近匹配方法，计算出偏离冻结流、偏离平衡流情况下燃烧速率、温度及组分浓度等参数的偏离解，进而总结出炭粒在气相Damk〓hler数为0，∞整个范围内燃烧特性变化规律。

The nonlinear hyperbolic conservation laws of the transient flow of the media in gas pipeline are hard to he solved, so, the control conservation laws are constituted of mass, momentum arid energy conservation laws, TVD/Godunov hydrid algorithm is used to simulate the transient flow in gas pipeline, and the traditional splitting approach processing nonlinear convection in momentum equation is dismissed ,the convection tern; is directly processed, in the way, the stablization of the algorithm and emulating accuracy of the transient flow are greatly improved.

针对管道中介质瞬变流动的非线性偏微分方程组难以解析求解的问题，由质量、动量、能量三个偏微分方程构成的控制方程组，应用TVD/Godunov混合算法数值模拟天然气管道中气体的瞬变流动，摒弃了传统的差分方法时动量方程非线性时流项的线性化处理，而直接处理非线性对流项，从而大大提高了算法的稳定性和管道瞬变流动的仿真精度。

METHODS: In 10 open-chest anesthetized pigs, myocardial deformation was studied before and during dobutamine infusion, under control and ischemic conditions produced by various degrees of coronary artery constriction: 2 of nonflow-limiting stenoses of increasing severity reducing left anterior descending artery hyperemic flow by 40% and 70% and 2 flow-limiting stenoses reducing resting coronary flow by 25% and 50%.

10只麻醉开胸的猪以各种程度的冠脉压缩制作为缺血状态组或对照组，研究其多巴酚丁胺灌注前后心肌损伤情况。2只无血流限制狭窄猪模型予以渐增的左前降支血流充盈减少分别为40％和70％，2只血流受限狭窄猪模型减少剩余冠脉血流25％和50％。

The results obtained from range analysis and variance analysis show that the channel turning angle is the most important factor affecting the flow index, and the flow rate is seriously influenced by the number of channel units, which facilitates settling the problem of increscent flow rate due to the structural optimization.

流量和流态指数的极差和方差分析结果均显示出流道转角对流态指数的影响最显著，而流道单元数对灌水器流量的影响最大，这一结果有助于解决流道经优化后带来的流量增大问题。

Identical data inequilibrium stats and similar shock-induced reacting flow fields are gained for tworeaction models when projectile velocity is 3km/s. In this case, the molar fraction ofdissociated methane is so small that the frozen flow or a very simple reaction modelcan well describe the flow field of weakly shocked methane. As projectile velocityincreases, molecular methane is readily dissociated and some stable products are formed. Only do the numerical results of the 40 reactions involving13 species approach to the corresponding experimental results.

计算表明，当飞片速度低(3km／s)时，两种反应模型给出冲击状态参数的结果基本一致，因为这时甲烷气体冲击波后的成分变化很小，说明可以用更简单的化学反应模型描述高温甲烷的化学反应过程；当飞片速度增大时，甲烷分子迅速的离解，反应产物容易形成稳定的化合物，只有13组元40反应模型的计算结果才能与实验结果接近。

And the unity need be applied to the supervise practive of enterprise. Through the above measure the enterprise could proceed flow restoration, thereby realize integration of stream with information flow and fund flow, and optimize managing, ameliorate operation of business supervise, shorten manufacturing of products cycle, improve the quality and efficiency of products, cut inventoriable cost, in season held market information.

因此，企业迫切需要将现代信息技术、管理技术和制造技术有机结合起来，并应用于企业的管理实践，进行流程再造，实现物流、信息流、资金流的集成和优化运作，改善企业经营管理，缩短产品制造周期，提高产品质量和生产效率，降低产品成本，及时掌握市场信息，以不断增强企业的市场应变能力和综合竞争能力。

ABSTRACT In this dissertation, three-dimensional (3D) numerical calculation of flow field through a torque converter is carried out with inviscid flow model and viscous flow model.

本文从流体无粘流动和有粘流动两种模型出发，较系统的研究了液力变矩器流场的三维数值计算。

Read and write of flash disk as USB host.According to the request of this subject, the system hardware and software for the slave device, and the communication interface to the master PC are developed. Detailed works are as follows: in order to implement the measurement principle in the system, flow-liquid levelmethod is used;velocity of flow is measured through rotor Kinemometer;water level is surveyedvia RS485 interface and pressure sensor;the C8051F060 chip which is in high performance andintegration, produced by Silicon Laboratories Company as master chip is used to capture and measure the width of impulses, so singals of flow velocity are collected and disposed;the 4×4 matrix keyboard and LCD are used in the part of man-machine interface which are easy to input, legible to read, various to display, comfy to be accepted and plain to show measure and inquiry results;FRAM memory FM3164 is used to carry out the non-volatile memory of data and accurate real-time clock.;SL811HST chip is used as USB host which can read and write flash disk,thereby a kind of adscititious mass storage is accomplished .

根据研制任务的要求，课题期间主要完成了下位机系统硬件和软件，设计了与上位机的通讯界面，所做的具体工作包括：测量原理在系统中的实现，采用了流速—水位计算法，通过旋桨式流速仪来测量流速，通过RS485接口与压力变送器通讯测量水位；主控制芯片采用了Silicon Laboratories公司的高性能、高集成度C8051F060芯片，利用其捕捉测脉宽的特性，实现了流速信号的采集和处理；人机接口部分采用了4×4矩阵键盘和LCD显示，输入方便，读数清晰，显示多样化，信息量大，易于被用户接受，更直观地显示测量及查询结果；通过采用铁电存储器FM3164实现了数据的非易失性存储和精确的实时时钟；通过采用SL811HST芯片，实现了USB主机的功能，可读写U盘，从而实现了单片机的外挂式海量存储。

The PEOHRC product muter model to establish Product flow , conception of Product flow and model , effect of Product flow is build up in detail .

详细论述了建立产品流的PEORRC产品主模型结构，产品流概念及其模型，以及产品流的意义。

He tendered his resignation to the Prime Minister.

他向首相递了辞呈。不适合

International economy and trade,Nanking 210044

国际经济与贸易，南京 210044