According to the requirements brought out by MSDA, a DBMS-oriented access control model ( DACM) is presented, which is based on the adaptation research of RBAC model.

DACM focus on enriching RBAC model by adopting access control context and solves the problem of violating the principle of least privilege.

DACM引入了访问控制上下文，有效地支持了数据库中的受控访问机制建模，并解决了原有方式中违反最小特权原则的问题。

The Application of Voltage-Output 10-Bit DACs

电压输出的10位DAC芯片的应用

Study on Key Technology of Drawing Input in DACS

DACS中工程图纸输入的关键技术研究

DACS: Design and Implementation of Access Control for Grid Data Service

DACS：网格数据服务访问控制的设计与实现

The integral DACT transmits system status to a central station via the public switched telephone network.

综合DACT通过公用交换电话网将系统状况传输到中央站。

He is currently the associate professor of music department and graduate institute of Ethnomusicology of NTNU, and the leader of DADC ( Digital Archival Documents Center, NTNU).

他是目前国立台湾师范音乐系和非欧洲文化的音乐研究学会的副教授、以及数字档案中心主任。

Sony DADC China is dedicated to develop the most advanced optical discs and digital products along with efficient and time effective one-stop-shop solutions for our customers.

索尼（上海）致力于生产及开发最先进的光碟及数码产品，并为我们的客户带来高效的一站式解决方案。

Synthesis and Properties of DADC/ VAc Copolymers

DADC/VAc共聚物的合成及性能

Sony DADC China objective is to become the business partner of your choice for the entertainment and hardware industry.

索尼（上海）力争成为娱乐业及电脑硬件行业您所选择的商业合作伙伴。

Sony DADC China is part of Sony DADCs global supply chain network.

索尼（上海）是索尼DADC全球供应网络的一员。

Design optimization should be directed against the actual condition of TD maintenance section of the human resource management system, which belongs to DADL for maintenance engineering company.

针对DADL检修维护工程公司TD维护项目部的人力资源管理体系的实际情况，进行设计优化。

During the2008 presidential election, then-candidate Barack Obama promised to end the DADT policy.

2008年的总统选举期间，候选人巴拉克。奥巴马承诺将停止DADT政策。

For plate products used in lower wing applications, increased weight savings can be achieved using selective reinforcement in DADT critical areas.

这种金属板应用于低层机翼时，在DADT这种临界领域应用选择性强化理念将会实现更多的重量节省。

Further more, the empirical formulas about average heat transfer coefficient and pressure drop of the DAE-2 tube and DAEC tube are given in this paper, which can be used to design condensers.

此外，本文给出了DAE－2管和DAEC管平均换热系数及阻力损失的计算关联式，可用于冷凝器设计。

And the Direct Alcohol Fuel Cell ( DAFC), using the liquid as its fuel, have much attractive development future because of its safety, easy for deposit and transportation, cheap, no need of the reforming of hydrogen.

而直接醇类燃料电池由于其使用液态的醇类，具有安全、易储存运输、燃料价格低廉，省去了氢气重整的烦锁，具有非常诱人的发展前景。

Direct alcohol fuel cell ( Direct alcohol fuel cell, abbreviated as DAFC) as a new type of green energy, has cross-age significance to solve the two current world problems of energy shortage and environmental pollution.

直接醇类燃料电池（Direct alcohol fuel cell，缩写为DAFC）作为一种新型的绿色能源，对解决目前世界面临的能源短缺和环境污染这两大难题具有跨时代的重要意义。

Direct alcohol fuel cells ( DAFC) have been one of ideal power source for a variety of small portable electronics with remarkable advantages of rich sources, high energy, safe transportation and storage.

直接醇类燃料电池具有燃料来源丰富、理论比能量高、运输和储存较安全等优点，是各种小型便携式电源的理想动力源之一。

In the paper, the problems in the commercialization of the proton exchange membrane fuel cell ( PEMFC) and the direct alcohol fuel cell ( DAFC) are introduced.

介绍了质子交换膜燃料电池（PEMFC）和直接醇类燃料电池（DAFC）实现商品化的优势和存在的技术问题；

Direct alcohols fuel cell ( DAFC) has been intensively researched and developed in recent years, because of its environmental protection, raw materials into renewable research hotspot.

直接醇类燃料电池（DAFC）以有机小分子醇为燃料，由于其环保、原料可再生等优点成为研究的热点。

In addition, noble metal Pt with high price is still the primary catalysts for DAFC.

并且目前DAFC的催化剂主要使用贵金属Pt，价格昂贵。