In the method DFF ( depth from focus), aiming at the characteristic of the images, we proposed that Wiener filter and image brightness normalization can be apply as preprocessing tools.

The decision circuit of the chip is applied with a DFF using SCFL structure and its tuned phase shifter with differential current amplifiers according to the principle of vector addition.

该芯片的判决电路采用SCFL（源级耦合晶体管逻辑）的D触发器结构，根据矢量叠加原理设计，采用差动电流放大器构成可调移相器。

Objective To study the clinical effect of Diabetic Foot Formula ( DFF) and its influence on hemodynamics of arteria dorsalis pedis ( ADP).

目的观察以糖足方为主综合治疗糖尿病足（DF）的临床疗效及其对足背动脉血流动力学变化的影响。

The result revealed that the lifetime of DFF and DCF were remarkably increased, and their properties of photobleaching resistance were significantly enhanced.

结果表明，与荧光素相比，DFF和DCF荧光寿命显著提高，抗光漂白性能明显增强。

A new auto-focusing algorithm based on Depth from Focus ( DFF) was presented according to the properties of the automatic iris imaging system.

针对自动虹膜图像采集装置的成像特点，本文提出了一种新的基于对焦深度法的自动对焦算法。

The Detection of DFF Gene in Four Species of Fish

4种鱼中DFF基因的检测

Logical control circuit design: this part includes the design of DFF, non-overlap clock generate and so on.

逻辑控制电路设计：D触发器、不重叠时钟脉冲发生器等模块的设计。

Objective: To study the effects of cefodizime ( CDZ) on superoxide production and neutrophil apoptosis response to heat_killed Klebsiella pneumoniae ( Kle. p) in mice.

目的：观察头孢地嗪（CDZ）对肺炎克雷伯杆菌（Kle.p）感染小鼠中性粒细胞释放活性氧以及细胞凋亡的影响。

The CDZ electrolyte free of Fe_2O_3 gives fast response in EMF.

不含Fe2O3的CDZ固体电解质可对电动势作出快速响应。

A High Efficiency and Multiple Application Finned Tube Machine& CDZ Finned Tube Machine

一种高效多用的翅片机&CDZ翅片机

Objective To explore the effect of Chinese drugs preparation ( CDP) external using on the healing time of diabetic foot ulcer ( DFU).

目的探讨采用中药制剂分期外治对糖尿病足部溃疡愈合时间的影响。

The driver can realize DFU Class-specific requests, the PNP ( Plug and Play) and Power management function.

实现了DFU类标准请求，USB设备即插即用及电源管理等功能。

The author arranged a DFU SDK according to some commonly used operation and it can provide some practical API functions.

从通用性出发，作者根据一些常用的操作整理了一个DFU SDK（DFU软件开发包），提供了一些实用的API函数。

Development of DFU Molten Aluminium Refining Unit

DFU铝熔体净化装置的开发

Dallas/ Fort Worth International Airport ( DFW)

达拉斯—沃思堡国际机场（Dallas/Fort Worth International Airport，DFW）

The Drilling Infromation Management System DFW of USA

美国钻井信息管理系统DFW

Design and Implementation of an Experiment System Based on DFW Supporting Multi-User Concurrent Control

多用户并发控制DFW教学实验系统的设计和实现

The functions, structures and user interface of a visual flatness automatic measuring system based on the DGB 4 inductance comparator are introduced.

介绍了基于DGB4型电感测微仪的平面度可视化自动检测系统的功能、结构和用户界面设计。

The secondary effluent from Gaobeidian Sewage Treatment Plant was treated with the DGB tertiary process for groundwater recharge.

以北京高碑店二级出水为对象，进行了二级出水地下回灌的DGB深度处理工艺的风险评价。

The recommended advanced treatment technology before artificial groundwater recharge in this study was DGB adsorption combined with coagulation by PAC.

本研究推荐的用于人工地下水回灌的城市污水深度处理工艺是DGB吸附与聚合氯化铝混凝沉淀协同处理。

Risk Assessment of Reclaimed Secondary Effluent with DGB Treatment for Groundwater Recharge

DGB处理二级出水用于地下回灌的风险评价