综述

Based on an synthesis of relative achievements in this field and defining the relative concept, the paper do the research on the core functions of RBD based on the theoretical and empirical research.

本文以RBD核心功能作为研究切入点，在总结相关研究综述、界定基本概念的基础上，分别从理论和实证两方面对RBD核心功能进行研究。

In this part we illustrate the purpose of this article,research purport,method and essential train of thought,definitude basic question, look back and sum up research fruits of this task,and summarize its worthiness.

导言主要是阐明本文的目的、研究的意义、研究的方法和基本的思路，明确本文所要解决的基本问题，回顾和综述本课题既有的研究成果，归结其研究的价值。

Current status on research and production of degradable plastics in China was reviewed.

综述了国内可降解塑料的研究与生产现状，介绍了可降解塑料的种类、特点以及研究与生产中存在的问题和今后的发展方向。

The state of the arts in degradable plastics is reviewed.

综述了可降解塑料的研究开发现状及其进展。

Summarized the development of research in degradable polymer material and the developing trend was also put forward.

还综述了可降解高分子材料的研究进展及其发展趋势。

In this paper,the present statue of the chitosan degradation was...

本文综述了国内外关于壳聚糖降解方面的研究现状，分析了其未来的发展方向。

The paper presents some applications of delay differential equation.

在对延迟微分方程的研究综述中，列举了一些延迟微分方程实际应用的例子。

The first part is the introduction, which concerns the delimitation of studied object, the study value, a review of the achieved and a prospect of the future.

第一部分是综述部分，包括研究对象的界定，研究意义和价值的分析，已经取得的成果的回顾，以及研究前景的展望。

The second part includes the delineation of basic concepts, and summary and discussion on related theories.

第二部分是概念界定、文献综述与相关的理论准备。

The different molecular structure of PPV-like derivatives are proposed to be responsible for the improved deliquescence, the enhanced electron injection and improved performance in PPV-like light emitting diodes.

本文主要介绍了通过对PPV类衍生物的分子结构修饰可以大大提高材料的溶解性、可加工性、发光特性等，同时较详细地综述了近年来国内外PPV聚合物的研究进展、前景和存在问题。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。