MMC-2 catalyst, a new DCC catalyst for increasing propylene yield developed by Research Institute of Petroleum Processing has been applied in the 650kt/ a DCCU located in Anqing Petrochemical Company.

DCDB employs the Client/ Server/ Client architecture and has a friendly GUI. DCDB is mainly developed by Java language and it has good portability and scalability.

DCDB采用Client/Server/Client结构，具有友好的图形用户界面，系统主要采用Java语言开发，具有良好的可移植性和可扩展性。

This paper introduces the design and implementation of dawning cluster debugger ( DCDB) which is developed for cluster system.

介绍了为曙光机群系统设计实现的并行调试器DCDB。

The issue of the delay-constrained multicast routing under dynamic environment was addressed firstly, and then a delay-constrained dynamic greedy algorithm ( DCDG) was proposed to construct a serial of dynamic multicast trees based on the greedy strategy.

分析了时延约束的动态最小代价组播路由问题，然后基于贪婪思想设计了一个动态组播树生成算法DCDG（Delay-Constrained Dynamic Greedy Algorithm），用于在动态环境下构造时延约束的低代价组播树。

Taking, the general two-dimensional steady convection-diffusion equation as an example, the deferred correction CDS scheme was derived based on the first-order upwind scheme, which we defined as DCDS scheme.

接着以二维对流扩散方程为例，推导出延迟修正的CDS格式，并定义为DCDS格式。

Compromising the programming efficiency, debugging, boundary treatments, numerical accuracy and stability, the DCDS scheme is a convenient and optimum way to maintain the second-order numerical accuracy.

总之，在程序的效率、调试、边界处理、计算精度及稳定性等因素权衡下，DCDS格式是保持二阶数值精度的简易途径。

The weight of the brain and body in model groups rats were lighter than those of the control groups. DCDs was a handicap to the development of the body and brain.

模型组与正常对照组相比，体重和大脑重量均明显减轻，说明模型鼠的身体发育和大脑发育均受到影响。

Voltammetric characteristics and oscillographic behavior of DCDS were investigated, and a differential pulse anodic voltammetry for determination of DCDS in capsule was presented.

考察了多贝斯的伏安特性及其示波行为，建立了多贝斯胶囊中多贝斯的微分脉冲伏安测定法。

All functional modules in DCDS are implemented by using C/ C++, and MySQL-API is used to access the diagnosis databases in Linux.

采用C/C++设计各功能模块，并利用MySQL–API实现在Linux下应用模块与数据库服务器的连接。

Two patients with DCDs demonstrated activation of basical cerebral regions such as Wernicke and Broca areas.

两例DCDs患者表现为基本语言功能区的激活，诸如Wernicke区和Broca区激活。

The changes of the electrical activity and cognitive function in the rat of DCDs after status epilepticus

皮质发育不良大鼠癫痫持续状态后认知功能和脑电活动的改变

Sixty-three cases with pathological confirmed chest diseases were studied with Doppler Color Flow Imaging ( DCFI). There are 23 benign tumors and 40 malignant tumors in 63 cases.

对63例胸腔疾病进行多普勒彩色血流成像（DCFI）的研究，其中良性病23例，恶性肿瘤40例（均经手术、病理证实）。

Objective: To estimate the relativity between DCFI and IVU to different degrees of renal hydronephrosis.

目的：评估彩色多谱勒血流成像（DCFI）与静脉尿路造影（IVU）对不同程度肾积水手术治疗前后的相关性。

The diagnostic value of Doppler colour flow image ( DCFI) was assessed in a.

本文对多普勒彩色血流显象（DCFI）的诊断价值进行了评价。

It is found that there is an optimum fiber length in DCFL at a defined pump power, and output mirrors with low reflectivity is better for high gain fiber lasers.

通过数值模拟计算，得到在一定的泵浦功率下存在最佳光纤长度，计算还表明输出镜的反射率越小光纤激光器的输出功率越大，可以采用光纤端面作为输出镜。

Based on the numerical analysis of rate equation, the power distribution along the fiber of Yb3+ doped double-clad fiber laser ( DCFL) under multipoint pumped is obtained.

采用数值方法求解速率方程，得出掺Yb3+双包层光纤激光器在多点泵浦条件下沿光纤长度上的泵浦光和信号光功率分布曲线以及输出功率。

Direct-coupled FET Logic ( DCFL) is an important logic family for GaAs FET LSI circuits because of its simple structure and good speed/ power performance.

直接耦合场效应逻辑（DCFL）具有简单的结构、良好的速度／功耗性能，是GaAsFETLSI电路中一种重要的逻辑形式。

Designing and Developing of HEMT DCFL Gate Circuits and Ring Oscillators with 1 μ m Gate-Length

1μm栅HEMT DCFL门电路及环形振荡器的设计与实验研究

Increasing inner clad radius and adopting different cooling measures such as air and water cooling also can lower operating temperature in DCFL.

增加内包层半径以及采取不同程度的制冷措施（风冷和水冷）可以降低DCFL的工作温度。

Simulation of Characteristics for GaAs IC DCFL Gate and Circuit Design

GaAs IC逻辑单元与或非DCFL特性计算机示波器方式模拟及电路设计

Power govern equations of DCFL are constituted. The characteristics of output wavelength, threshold power and slope efficiency of fiber laser are analyzed.

建立了双包层光纤激光器的功率传输方程，并对光纤激光器输出波长特性、阈值功率和斜效率进行了探讨；