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The effect of the inlet parameters of air, air mass flow rate and spray water rate on the performance of closed cooling tower is discussed in the paper. A mathematical model for evaluating heat and mass transfer performance of closed cooling tower is set up. The analytical solution of differential equations is derived.

目的 分析闭式冷却塔内各参数，即空气焓值、含湿量、冷却水温等的分布情况；探讨空气入口参数、空气质量流量、喷淋水量对闭式冷却塔冷却性能的影响规律。

His methods of working include method of coming from the mass and working among the mass, that of stereotypical model, that of political mobilization, that of analysis like that of anatomization of a sparrow, that of combination of political work and administrative work, and combination of ideological-political work and practical work in all fields, etc.

思想方法包括：阶级和阶层分析的方法，矛盾分析的方法，实践第一和理论与实践相结合的方法；人民至上的价值选择和价值判断方法；工作方法包括：从群众中集中起来又回到群众中坚持下去的方法，典型示范的方法，政治动员的方法，解剖麻雀的方法，政治工作与行政手段相结合的方法，思想政治工作同不同领域具体业务工作结合的方法等。

His methods of thinking contain methods for analysis of social classes and groups, and contradictions, practice first and combination of theory and practice; methods of value choice of people's benefits above all else and value judgment. His methods of working include method of coming from the mass and working among the mass, that of stereotypical model, that of political mobilization, that of analysis like that of anatomization of a sparrow, that of combination of political work and administrative work, and combination of ideological-political work and practical work in all fields, etc.

思想方法包括：阶级和阶层分析的方法，矛盾分析的方法，实践第一和理论与实践相结合的方法；人民至上的价值选择和价值判断方法；工作方法包括：从群众中集中起来又回到群众中坚持下去的方法，典型示范的方法，政治动员的方法，解剖麻雀的方法，政治工作与行政手段相结合的方法，思想政治工作同不同领域具体业务工作结合的方法等。

Under the vertical load, the strength of rock mass is higher when there is only one group of joint and the dip angle is less than 20 or higher than 80; When dip angle is between 20 to 80, the strength of rock mass is much lower, it is smallest when dip angle is about 50, and it is lower when this kind of dip angle is in combination with other angle.

7在铅直向荷载作用下，岩体中只存在一组倾角小于20°或者大于80°时，岩体的强度相对较高；当岩体中存在一组节理的倾角在20°～80°间时，岩体的强度值很小，而且在与其他倾角的节理组合时，岩体的的强度值变化不太大，特别是当节理倾角为50°左右的时候，岩体的强度相对最低。

For example, the stellar mass-to-light ratio could be anomalously large; equilibrium demands more velocity for more mass.

例如，恒星的质光比可能呈现异常得大；为了平衡越大的质量就需要越大的速度。

The anomalously low friction phenomenon is one of the typical dynamic phenomena in the deep block rock mass,reflecting the inconsistent and inconsecutive dynamic characteristics of deep block rock mass.

不规则超低摩擦现象是深部块系岩体典型动力学特征现象之一，集中反映了深部块系岩体非协调、非连续的动力学特性。

In the early morning, in a house-jacket, she looked after the management of her household. Then she drove on saints' days to Mass, and from Mass to the gaols and prisons; and of what she did there, she never spoke to any one. On ordinary days she dressed and received petitioners of various classes, of whom some sought her aid every day. Then she had dinner, an abundant and appetising meal, at which some three or four guests were always present. After dinner she played a game of boston; and at night had the newspapers and new books read aloud to her while she knitted.

大清早，她就穿上短棉袄，搞一点家务，之后，每逢节日去做日祷，日祷完毕后便去寨堡和监狱，她在那里从事什么活动，她不向任何人透露，在平日里，她穿好衣裳后，便来招待每天到她家里来的各个不同阶层的向他求援的人，然后用午餐，在味美而丰盛的午餐上，经常有三四位来客，在午餐之后打一圈波士顿牌，晚上叫人给她读报，给她读新书，她一边听，一边做针织活计。

On the other hand, Yang Lijuan'sfather not apprehensibility its daughter why return to Chi fan to this kind of extent, that is him can't comprehension mass media of function, he be a condition in ages, a level of education still a medium with daughter regardless contact of time and frequency top all mutually be apart from very far, so this body now"know ditch" ories of mass media.

一方面，杨丽娟的父亲不能理解其女儿为何回痴迷到这种程度，那是因为他无法理解大众媒介的作用，他与女儿无论是在时代条件、教育程度还是媒介接触的时间和频率上都相距甚远，因此这就体现了大众媒介的"知沟"理论。

The reaction-diffusion model was developed to analyze the concentration of enantiomers and the separation factor of the enantioseparation process of chiral emulsion liquid membrane by studying the principle and some factors of mass transfer process. The mass transfer resistance of boundary layer in outer aqueous phase and the interfacial chemical reactions at the liquid membrane interfaces were taken into account in the model equations.

通过对乳状液膜手性分离过程中传质机理的研究以及各影响因素的分析，得到了可以分析和预测乳状液膜手性拆分过程传质的反应-扩散模型，该模型同时考虑了外水相边界层的扩散阻力和手性对映体与载体的反应阻力。

Date Received : April 18, 2001; Date Accepted : June 7, 2001）This study had discussed the correlation between scenic beauty and mass planting skyline, which make up of the grass, the sky, and Araucaria heterophylla. The scenic beauty estimation method and the way of the visual simulation would be used to establish the predictive model of scenic beauty of mass planting skyline to serve as a guideline for planting design.

本研究应用景观美质评估法，采用视觉模拟的方式，以草地、天空、以及小叶南洋杉单一树种所组成的树群天际线景观，来探讨其与景观美质之关系，并建立树群天际线景观美质的预测模式，提供植栽设计树群组配时之参考。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。