All extracts of Camptotheca acuminata Decn had stronger antifeedant activity towards 3rd-instar larvae of Plutella xylostella.

With a screened sample holder as an electric probe, we studied the properties of DECR plasma of several gases including Ar, H 2, O 2 and N 2O.

文中利用样品架作为探针对Ar，H2，O2及N2O等气体的DECR等离子体特性作了定性的实验研究和分析。

Abstract In this paper we have introduced a novel high density low temperature plasma: distributed electron cyclotron resonance ( DECR) plasma.

本文介绍了一种新型高密度低温等离子体&分布式电子回旋共振（DECR）等离子体。

The non-isothermal reaction kinetics for synthesis of diethylene glycol dibenzoate ( DEDB) was studied. The result showed that DEDB formation reaction belongs to chain competitive reaction.

对二乙二醇双苯甲酸酯（DEDB）的非恒温反应动力学进行了研究，结果表明：DEDB生成反应属二级复合反应中的连串竞争反应。

According to the domestic and foreign datum, the synthetic method of DEDB by using diethylene glycol, benzoic acid and catalyst butyl titanate was introduced.

根据国内外文献资料，本文采用直接酯化法，以苯甲酸和二甘醇为原料，钛酸四丁酯为催化剂催化合成DEDB。

DEDB with the compatibility of PVC stabilizer worse than others. 8.

DEDB与PVC的相容性较其他稳定剂差。

Aimed at the kind of blade'sparts, a dynamic engineering database ( DEDB) oriented rapid process preparation system is developed.

针对叶片类零件开发一个面向快速工艺准备的动态工程数据库。

Study on Synthesis Process Conditions of DEDB

DEDB合成条件研究

DEDB also plays a great role in all kinds of thermal adhesive.

DEDB在制造各类热熔粘合剂中也起很大作用。

Researches on DEDS use many methods, which are based on models of different levels.

由于对DEDS研究是多层次的，有许多模型方法；

Linear System Theory for DEDS with Decision Properties

带决策机制的DEDS的线性系统理论

An Algebraic Approach to the Analysis of Real Time DEDS Supervisory Control

实时离散事件系统监督控制的代数分析

An Intelligent System for the Reliability Analysis of Stochastic DEDS

随机离散系统可靠性分析的智能体系

On the Research of Optimal Algorithm of Simulation Model of DEDS

离散事件动态系统（DEDS）仿真的最优算法研究

Graph Methods Representation about the DEDS Kalman Model Parameter Matrixes

一类离散事件动态系统Kalman模型参数矩阵A、B、C图论表示法

The current state and developing trends of DEDS theory

离散事件动态系统理论：现状和展望

Simulation results show that DEEC, under limited network latency, outperforms LEACH significantly with prolonging the network lifetime over 45%.

仿真实验表明：DEEC能在较小的网络延迟下把LEACH的网络生命周期延长约45%。

Methods Thirty-six patients ( 40 hips) were treated by Dega osteotomy ( Dega osteotomy plus open reduction with or without derotation osteotomy and femoral shortening) between December 2001 to December 2004. There were 29 female and 7 males.

方法采用Dega截骨术治疗发育性髋关节脱位36例40个髋，女29例，男7例；

Diversity Enhancing Genetic Algorithm ( DEGA) is presented to prevent premature convergence of GA, which introduced the ideas of affinity from immune system and cataclysm from biologic evolution process.

引入免疫系统亲和度的概念和生物进化过程中的灾变概念，提出一种强多样性的遗传算法来克服早熟收敛。

DEGA searches all over the solution space as far as possible by lowering the affinities among the individuals of the initial population.

首先降低初始群体中各个体之间的亲和度，使得搜索尽可能遍历整个解空间。

Dega osteotomy for developmental dislocation of the hip

Dega截骨术治疗发育性髋关节脱位