流控制

They help us understand the regulation of inner gas-flow field of coal ball mill and lay a foundation for further study in gas-particle property of the machine. At the same time, the conclusions offer beneficial reference for optimizing the machine structure design and controlling the inner flow field.

文中总结出磨煤机内气相流场随磨煤机填充率和进出口管道口径变化的规律，为磨煤机的结构优化设计和实际生产中对磨煤机内部流场进行控制提供了有益的参考。

It analyzes the advantage of the scheme of high-voltage load switch current-limiting fuse combination,compared with traditional vacuum circuit breaker,in the protection of transformer up to 1 250 kV·A.

随着高压负荷开关-限流熔断器组合电器的出现，使得在操作不频繁、容量在1 250 kV·A及以下的场所，正逐步替代真空断路器，其中负荷开关用来开合负荷电流，以限流熔断器作短路保护，将控制与保护两种功能分开。

Shock absorption and structure-liquid couping.as to be a part of the capital stock item of nature science, the article just contains some words and research about damping shock absorption and structure-liquid couping these only two sides, and we have explained for the insufficient in the last part also we point out that we need to do the research wilder and deep in the future.

涉及到隔震、减振、流固相互作用等多方面，作为国家自然科学基金项目研究的一部分，本文只针对渡槽结构控制中的阻尼器减振以及流固耦合两个方面作了一定的研究，在最后一章的论文总结当中，我们对一些不足之处进行了说明，并且指出了接下来的研究工作需要在广度和深度上进行进一步研究的地方。

It was pointed that the study of downburst wind loads would provide the basis and guides for constructing the next wind tunnel emulating thunderstorm environment and downburst-resistant design of transmission tower-line systems; simultaneously it would give an important reference to both the design and implementation of wind-induced vibration control of transmission tower-line systems.

指出了对下击暴流风荷载的研究将为我国建造模拟雷暴风环境的新一代风洞实验室和输电塔线体系的抗下击暴流提供理论基础和设计指导，同时为输电塔线体系的风致振动控制设计与实现提供重要的参考。

The theoretical foundation for further research is established. In chapter 6, the flow field of poppet valve and spool valve which are two kinds valve frequently used in hydraulic technique are predicated by finite element method. The flow field structure at different valve opening are illustrated by visualizing images. The effect on the flow noise and energy loss probably caused by vortexes is analyzed quantitatively, the flow channel of the valve is improved.

第六章用有限元方法对液压传动与控制中最常见的两种结构形式的液压阀—液压滑阀和液压锥阀流场进行数值预报，给出不同开口度和不同结构尺寸下流场结构的可视化图像，定性分析涡旋的产生对流体噪声及能量损失可能产生的影响，并对阀的流道结构进行改进。

Taking velocity moment as controlled variable, the formulas were deduced to calculate quasi-3D inverse problem for uniform stream model of guide pulley. According to the theory of two relative flow surfaces and the force analysis of air bubble, the formulas were deduced to calculate quasi-3D direct problem while gas and liquid running in the guide pulley of multiphase pump, and a method was provided to carry on quasi-3D numerical calculation of inner flow filed.

以速度矩作为控制参数，推导出多相泵导轮中均匀流模型的准三维反问题计算公式；基于两类相对流面理论及气泡的受力分析，推导出气、液两相在多相泵导轮中运动的准三维正问题的计算公式，提出一种对多相泵导轮内流场进行准三维数值计算的方法。

The embedded applications that are subjected to "click to activate" behavior on IE browser include Flash based object such as Flash streaming video and Flash animation, Java applet, map engines, PDF reader helper, streaming TV channel player control and other IE add-ons.

嵌入式应用，受到&点击激活&的行为对IE浏览器，包括闪存基于对象，如闪光流视频和Flash动画， Java Applet的，地图引擎， PDF阅读器帮手，流电视频道，播放器的控制和其他即加载项。

Based on Combination of the MMF equation and the branch current equation, an expanded equation about the winding currents and current-limiting reactances is obtained. According to the feature that the control windings are short-circuited in turn, the current-limiting reactances are calculated for each control winding step by step.

把磁势平衡方程和支路电流方程相结合，推导并得到了关于绕组电流和限流电抗的增广方程，再根据控制绕组顺次短路工作的特点，提出了CRT的各级限流电抗值的一种递推算法。

3The transience multiphase flow software was employed for simulating pipeline's slug flow behavior in this paper. The computational results of OLGA have been interpretted by relevant theory.The changes of pressure and holdup in the slug flow analyzed were explained, and its inherent regularity was also revealed in detail.Through which, the cause to slug flow was found out, and the flow type of slug could be suppress or controlled effectively.

3采用瞬态多相流软件对管道流动特性进行模拟研究，用相关理论解释OLGA软件的计算结果，主要针对段塞流压力、持液率的变化规律进行分析，详尽地揭示其内在规律，确定段塞流产生的原因，并进行模拟控制调节。

This design uses AT89C51 SCM chip controls the charging process, achieving A/D convert and show circuit. The battery voltage information can be detected by the external circuit to choose the correct charge mode, realizing the intelligent conversion mode of the trickle charge, the constant current charging, the constant voltage charging and the float charge.

采用AT89C51单片机芯片作为充电过程的控制芯片进行电路设计，实现A/D转换和显示电路，并根据外部电路检测到的电池电压信息选择正确的充电模式，实现在涓流、恒流、恒压及浮充电模式之间的智能转换。

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