A novel preparation method to synthesize DEDB by using aluminium phosphotungstate catalyst was developed.

TheHCHs and DDTs in the Liao River originate mainly from the use of pesticides inagriculture.

六六六和滴滴涕是主要污染物,它们主要来源于农药的使用.

The distributions of DDTs and PCBs is very similiar, but HCHs is different.

DDTs和PCBs有极为相似的分布特征, 而HCHs的 分布特征则不尽相同.

The concentrations of HCHs , DDTs and PCBs were determined by gas chromatography ( GC ).

HCHs 、 DDTs及PCBs含量用GC法测定.

Organic chlorinated pesticide such as DDTs is one kind of typical global environmental pollutant.

有机氯农药DDTs是全球性环境污染物,对生态环境有严重影响.

The residual levels of DDTs, HCHs in soil were different with different utilization types.

土壤中DDTs 、 HCHs残留在不同土壤利用方式下有所不同.

This paper deals with the issurs of cooperation in a DDSS.

本文探讨DDSS的结点合作问题.

The combined vacuum distillation and melt crystallization technology was used to purify DDHI from artificial musk.

通过减压精馏熔融结晶耦合技术研究提高人造麝香(DDHI)含量的原理和工艺流程.

Results Sales sum and DDDs of anti-diabetic agents revealed an increasing tendency.

结果 抗 糖尿病药物的销售金额和用药频度均呈现增长趋势.

Methods: According to the defined daily dose ( DDD ) recommended by WHO, the daily drug cost and DDDs were analyzed.

方法: 根据WHO推荐的限定日剂量,以用药频度 ( DDDs) 、 日用金额等为指标统计、分析我院催眠药物的应用情况.

The DDDs of compound red sage tablet increased by 22 %.

复方丹参片DDDs上升了22%.

DDBS eliminate many disadvantages of conventional centralized database system , suit many non-centralized architecture.

分布式数据库消除了传统集中式数据库的许多缺点, 适合于多种 非 集中式体系结构.

The application of DCSP and optimization presents a new vision for VEpartner selection.

分布式约束满足和优化方法的应用,为解决虚拟企业伙伴选择问题提供了一种新思路.

Describes briefly body position fixing skills in 3-DCRT of the body X-ray.

本文简要地介绍了体部肿瘤动态 三维 适形放疗的体位固定、治疗方法和摆位技术.

Objective To explore the effect of 3 DCRT on Bile Duct Cancer.

目的探讨3DCRT治疗胆管癌的疗效.

This paper described the synthesis and application of the series of DCPD petroleum resins in detail.

讨论了双环戊二烯系列石油树脂的合成与应用.

DCPD type unsaturated polyester resin prepared by using semi condensation polymerization method is proposed.

本文用半缩聚法合成双环戊二烯型不饱和聚酯树脂.

Error connecting to DCOP-Server.

连接到 DCOP 服务器出错.

As science and technology progresses, modern industry is developing towards large-scale, high-speed , continuum and autoimmunization.

随着科学技术的不断进步, 现代工业正朝着大型化 、 高速化 、 连续化和自动化的方向发展.

At last, it realizes the measuring process autoimmunization.

同时, 实现了工作过程的自动化.

Such coal autoignition is a big hidden trouble to the coal storage.

煤炭自燃火灾严重影响煤炭的安全生产和储藏.