规律的

In this mathematical model, we made the comprehensive consideration of the condensability of the liquid, the Westphal＇s effect, the continuous flow condition and the dynamic property of the ball valve.

应用数值方法建立了自动球阀运动规律的计算机仿真模型，通过数值模拟，得到各个参数对球阀运动动力特性影响的基本规律。

The fundamental formulae of magnetic field were used to deduce the formulae for the three-dimensional magnetic field of tubular magnet.

应用磁体空间磁场规律的基本公式，推导了管柱形永磁体的三维空间磁场规律计算公式。

The waveform shape analysis based on the fluctuation law of the instantaneous angular speed of diesel engine under normal condition is an important monitoring method.

瞬时转速波形分析法是以柴油机正常态瞬时转速波动规律为判据的分析方法，因此，瞬时转速波动规律的仿真计算非常重要。

Now that the current 3-phase separators have many defects,by means of the study of gas-liquid's kinematic relation in cyclone separation and the study of oil/water separation in gravity sett...

针对目前三相分离器存在的不足，通过对旋流分离中气液运动规律和重力沉降中油水分离规律的研究，研制成功了一种新型高效脱水设备—高效分离器。

Now that the current 3-phase separators have many defects,by means of the study of gas-liquid's kinematic relation in cyclone separation and the study of oil/water separation in gravity settling separation,a new kind of high efficient dehydrating equipment-- high efficient separator has been developed successfully.

针对目前三相分离器存在的不足，通过对旋流分离中气液运动规律和重力沉降中油水分离规律的研究，研制成功了一种新型高效脱水设备—高效分离器。

Dual function one direction singular rough sets is a novel theory and method in recognizing the turbulent law existed in the system and recognizing the system law.

函数单向S-粗集对偶是识别系统中存在干扰规律，识别系统规律的一个新的理论与方法。

As the complete characteristic curves of reversible pump turbine are often used to calculate the instantaneous parameters, this paper studies the characteristic curve and the wicket closure and opening law in pumped storage plants.Chapter 1 presents the importance and the necessity of this study and reviews the previous related research on hydraulic transient process and valve regulation in pumped storage plants.Chapter 2 analyzes the six collected characteristic curves of reversible pumped turbine and studies their diversification from the point of view of specific speed. The six collected discharge and moment curves with maximum efficiency have been fitted to piecewise continuous curves. This curve-fitting procedure is listed.Chapter 3 takes Liyang Pumped storage plant as an example and analyzes the effect of different characteristic curves on regulation guarantee parameters and the variety of its trochoid during the same operation status.Chapter 4 takes three pumped storage plants with different heads as examples and studies the characteristic of coordinated closure with wicket gate and ball valve and its effect on dynamic pressure in the spiral case, inlet pressure in the draft tube and the rise of rotating speed.Chapter 5 summarizes this paper and point out what should be done in the future research.

由于在过渡过程分析计算中，需要频繁利用可逆式机组的全特性曲线推求机组的瞬时参数，所以本文就特性曲线及关闭规律问题进行了研究，其主要内容如下：第1章，指出本文研究的意义和目的，回顾前人对水力过渡过程、抽水蓄能电站及阀调节的研究成果，在此基础上提出本文的研究内容；第2章，针对收集到的六套特性曲线，从比转速的角度出发来研究可逆式机组特性曲线的变化规律；并对六套曲线的最高效率流量和力矩曲线进行分段拟合，得到各分段函数的具体形式，再通过举例说明最高效率曲线的拟合步骤；第3章，以溧阳抽水蓄能电站为实例，分析讨论不同比转速特性曲线对调保参数造成的影响及对于相同工况其轨迹线的变化；第4章，结合高、中、低三水头段抽水蓄能电站，在导叶直线关闭的基础上，研究导叶与球阀协联关闭规律的特点及对蜗壳动水压力、尾水管进口压力及转速上升造成的影响；第5章，总结全文，提出今后研究的重点和方向。

In the course that builds system of socialist market economy, people began to have understanding, knowledge to market economy rule, and be deepened ceaselessly, this involves the twoness issue of market economy rule necessarily.

在建立社会主义市场经济体制的过程中，人们对市场经济规律开始有了了解、认识，并且不断深化，这就必然涉及到市场经济规律的二重性问题。

Based on the theory of associated and decentralized control, this paper introduces the modeling method of AC/DC power system and control law deriving, which can be realized dispersedly and guarantee the stability of the system with optimal performance.

摘要介绍了交直流电力系统关联测量分散励磁控制的建模方法和控制规律的求取，所得控制规律既可以分散实现，又能保证全局稳定且性能最优。

Based on the theory of associated and decentralized control, this paper introduces the modeling method of AC/DC power system and control law deriving, which can be realized dispersedly and guarantee the stability of the system with optimal performanc

摘要介绍了交直流电力系统关联测量分散励磁控制的建模方法和控制规律的求取，所得控制规律既可以分散实现，又能保证全局稳定且性能最优。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。