It mainly has two parts as follows: theory research of foamed drilling fluids, and practice achievements in foam and foamed drilling technology.
论文主要包括两大部分：一是泡沫流体理论研究，二是泡沫和泡沫钻进技术的实践成果。
To find a practical and effective way of teaching, I have done much research into practice and theory according my own experience in chemistry teaching.
为了找出一条切实有效的科学方法教育之路，笔者结合高中化学教学，从理论和实践两方面展开了研究。
How to manage operational risk becomes the forward problem in international finance's theory research and practice.
如何管理操作风险则成为国际金融界理论研究与实践的前沿问题。
Effective teaching has become a hot topic in the research on teaching theory and practice.
有效教学已成为教学理论与实践研究的一个热点问题。
The object matter of the foreword part is to describe the aim of this article, its research area and expectation, and its value both in practice and theory.
引言部分主要说明本文写作的目的、涉及范围、相关领域的前人研究成果，研究设想、理论意义和实际价值、创新性。
The research to improve the data quality of CAD model in original modeling stage is very significative both on theory and on practice.
提高初始建模阶段CAD模型数据交换质量的研究具有较强的理论意义和实用价值。
So it is important doubtlessly both in theory and in practice to research on the economic running quality evaluation of the coal industry.
因此，进行煤炭经济运行质量评价研究，无疑具有重要的理论意义和实际价值。
The theory of developmental assessment has been advanced for many years, and a great deal of practice and research has been done in some developed countries.
发展性评价理论已经提出很多年，而且在一些发达国家已经开展了大量的实践研究工作。
The research is significant in practice and theory.
本文的研究具有重要的理论和实践意义。
The theory is now in the forward position of financial research and practice as well as a hot topic in western countries.
目前这一学说是西方国家金融研究和实践的前沿领域，同时也是热门领域。
The research of delay differential equation is very important in theory and in practice.
这篇文章的主要目的是研究时滞对种群生长的作用。
Language education objective is the important content of educational theory research and the fundamental and overall problem in teaching practice.
语文教育目标是语文教育理论研究的重要内容，也是语文教育实践中具有根本性、全局性的问题。
Although this problem does not undergo systematic research, but involve in the theory and practice more, and last for a long time, become the real problem that can't be avoided.
该问题虽未经系统的研究，然而在理论和实践中多有涉及，且历时已久，成为无法回避的真正问题。
Then the following part put forward the assumption: our country should make more research on the burden of proof in medical issues from the aspects of theory and practice.
在此作者介绍了英美法中的“事实自证原则”，德国法上的“表见证明理论”以及“重大医疗过失的举证责任转换”，并将这些理论与我国的举证责任倒置做了比较。
Whether in theory or in practice, we should emphasize research on firm movements and mobility barriers, particularly in regards to our domestic firms.
无论是从理论还是现实的角度出发，都应该重视对企业流动及流动壁垒问题的研究，这对现阶段的我国企业有着十分重大的现实意义；
Thus a research about primary school children's computational estimation is very important in theory and in practice.
考察小学儿童的估算有着极为重要的理论和现实意义。
As the key technology, the research on how to control and coordinate multiple AUVs has important significance in theory and practice.
作为水下机器人技术中的关键技术，研究如何实现水下机器人运动的精确控制以及多机器人系统控制具有重要意义。
The above experimental research and theoretic analysis are of great significance in both theory and practice.
以上对新型水力旋流器的实测研究和理论分析不仅具有重要理论意义，而且具有实用参考价值。
This research has important significance both in theory and practice.
本课题研究具有重要的理论和现实意义。
Therefore, the research of the speed and strength has important meanings in theory and practice.
因此，速度和强度的研究在理论和实践上都具有重要意义。
The lack of research on the theory of Country risk results in more and more difficulties in practice.
国家风险理论研究的缺乏导致在实践操作和防范上存在诸多困惑。
Therefore, the research on it has important significance in theory and practice.
因此，对其进行研究具有极其重要的理论意义和实践意义。
So the research about its methods to estimate will be valuable in theory and practice.
研究瞬时频率的估计方法具有重要的理论意义和实用价值。
The research in mechanical theorem proving has great significance in the theory and the practice.
定理机器证明的研究，在理论和实践上都具有重要的意义。
The study of the influence of the build and run of hydropower project on runoff is a foundational research project, which is very important in both theory and practice.
水电工程建设和运行对河川径流的影响研究是一项基础性研究课题，有着十分重要的理论与实际意义。
The study of the influence of the build and run of hydropower project on runoff is a foundational research project, which is very important in both theory and practice.
水电工程建设和运行对河川径流的影响研究是一项基础性研究课题，有着十分重要的理论与实际意义。
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