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So study on buckling behavior of cylindrical shells with openings are of theoretical and practical value.

因此，研究开孔圆柱壳的屈曲问题具有理论意义和实用价值。

It has great values for development. Analysis of the genetic diversity of buckwheat has important theoretical and practical significance for the preservation and forthputting of resources.

分析甜荞的遗传多样性对其资源保存和利用具有重要的理论和实践意义。

The effect of buffer control on user-level QoS having been studied in-depth with theoretical analysis. The buffer size providing determinate delay and delay jitter guarantee is found and the buffer size providing the optimal user-level QoS for a certain network condition is demonstrated.

从理论上深入挖掘缓存控制对用户层QoS 参数的作用，给出了提供确定时延和时延抖动保障的缓存容量值，论证了在网络环境一定时存在提供最佳用户层QoS 的缓存容量值。

Still in the theoretical study of the shareholding system, this paper presents specific building project.

对尚在理论探讨中的股份制，本文提出了具体的构建方案。

Studying and discussing these issues is of great theoretical and practical significance to the development and perfection of Chinas public ethics and market economy society, and to building-up the socialist harmonious society as well.

这些问题的研究和探讨对我国公共伦理及市场经济社会的发展和完善，对构建社会主义和谐社会都具有重要的理论意义和现实意义。

The results show that the structure parameters of the bulk-modulus measuring device and the pressure and flow parameters of the testing system are set properly. The measured value of the bulk modulus of hydraulic oil is nearly equal to the theoretical value.

在AMESim仿真软件平台上进行了该装置测量历程的仿真分析，效果表明油液弹性模量检测装置的结构参数和测量系统的压力流量等设定得合理，测得的油液弹性模量值与理论值吻合较好。

The aim was to provide the theoretical basis for the further development arid utilization of red pigment from Suaeda glauca Bunge.

［目的］为碱蓬红色素的进一步开发利用提供理论依据。

In order to provide theoretical reference to the burl's directional cultivation and utilization research was done on Populus tomentosa,Salix matsudana and Robinia pseudoacacia,and the pH value, buffering capacity of acid and alkaline,curing time of UF of various species of the normal wood and the burl wood were compared.

为了给瘤材的定向培育和合理加工利用提供科学依据，以自然生长的、带有树瘤的毛白杨、旱柳、洋槐为试验材料，对各树种的正常材和瘤材的pH值、酸碱缓冲容量、与脲醛树脂胶固化时间等指标，进行对比研究。

By studying the membrane preparation process for the typical membrane materials of polystyrene and cellulose acetate as well as a new type membrane material of polyvinyl butyral,the effects of operating parameters on the membranes structure are determined.By the study on the thermodynamics involved in the ternary systerms of ScCO_2/solvent/polymer and the calculation of theoretical ternary phase diagrams,the phase demixing behavior during the membranes formation by ScCO_2 induced phase separation process are described.By studying thermodynamics involved in the quaternary systerms of ScCO_2/solvent/additive/polymer,the effect of a low molecular weight additive on the quaternary phase diagram and dimixing speed are revealed.

通过对传统膜材料聚苯乙烯、醋酸纤维素及新型膜材料聚乙烯醇缩丁醛进行ScCO_2诱导相转化制膜工艺的实验研究，给出了操作参数对膜形态结构的影响规律；通过研究ScCO_2/溶剂/聚合物三元体系热力学问题，并计算出相应铸膜体系的三元相图，对ScCO_2诱导相转化膜制备过程的分相成膜行为进行了分析与描述；通过研究ScCO_2/溶剂/小分子添加剂/聚合物四元铸膜体系的热力学问题，并借助于四元体系理论相图计算的结果，分析了小分子添加剂对相分离过程的影响。

By comparison with the theoretical solution and published results, the efficiency and practicability of the algorithm are confirmed.

在此基础上，选用经典10杆桁架结构对该算法的寻优能力进行了验证。

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。