Collision between valve face and valve seat has been simulated in the software environment of ANSYS/ LS-DYNA.

The utility model relates to an inclined-tapering face multiple-way valve.

本实用新型是一种斜锥面多通阀。

Precision Press Machining of Small End Face of Valve

气门小端的精密冲切加工

Formation and Elimination of Porosities and Cracks on the Head Face of Valve Tappet

气门挺杆端面气孔裂纹形成原因分析及其消除措施

Single-direction metal sealing face ball valve

单向金属密封球阀一张难以琢磨的脸

Gen. Rodzali Daud described the report as inaccurate and incorrect, and said Malaysia's air force is still examining all possibilities.

Rodzali Daud称该报道“失实”，说马来西亚空军仍在调查所有的可能性。

So it was with a sense of mission that Daud turned to working for peace – first with non government organizations and later joining the World Bank.

带着一种使命感，Daud开始为争取和平而努力-起初，他与非政府组织一道开展工作；后来，他加入了世界银行。

" Farmers were barely able to work three or four hours a day, four times a week on average ( during the conflict)," calculates Daud.

“（冲突期间）农民们每周平均只能下地干活四次，每次几乎干不足三、四个小时，”Daud说。

General Daud Daud was killed along with a provincial police chief, two bodyguards and three German soldiers.

杰尼罗•多德多德被杀的时候身边还有警察局长，二个贴身保镖，三个德国士兵。

The relations of the two country appeared twists and turns after Daud came into power, but their relations were normal.

达乌德在阿富汗执政后，苏阿关系出现了波折，但双方仍保持着正常的国家关系。

Daud says one example of the impact of the conflict could be seen in central Aceh.

Daud表示，在亚齐省中部，人们可以看到冲突所造成的影响实例。

This paper is developed around the characteristics of data transmission between DAUs in the new system with the purpose of increasing the transmission speed and reliability, and the researches on modulation-coding related technology and its application in seismic data transmission is presented.

论文工作围绕新型地震数据采集记录系统的野外站体间数据传输的特点展开，以提高数据传输速率和可靠性为目的，研究调制编码相关技术特点及其在地震勘探数据传输中的应用。

In January this year, at the very start of Q1, the Financial Times reported that Honor of Kings had 50 million DAUs-more than Pokemon Go at its peak.

据《金融时报》报道，今年一月份，也就是第一季度初，王者荣耀的日活跃用户数达5000万人，比精灵宝可梦GO全盛时期的日活跃用户数还要多。

To obtain low sidelobe level, tolerance analysis is applied to the antenna array composed by DAUs and the relationship between DAU features and surface planeness error are studied.

为了确保天线低副瓣指标，需要对由DAU拼装形成的天线阵面进行平面度误差分析，并寻求基本拼装单元DAU结构要素与阵面平面度误差之间的联系。

Tencent stated its belief that Honor of Kings is among the most popular games in the world in terms of DAUs.

在日活跃用户数方面，腾讯相信王者荣耀已跻身世界上最受欢迎的游戏之列。

Dava Newman is a professor at MIT, her specialty is human space flight.

纽曼是麻省理工学院的教授，她的专长是人类太空飞行。

Eventually get the following conclusions: ( 1) Land in Dawa was divided into five soil fertility levels.

最终得到以下结论：1.大洼县共划分为五个县地力等级。

N μ merical Simulation of Complex Fault Block Reservoirs in DaWa Oilfield

大洼油田复杂断块油藏数值模拟研究

Dawa has a dream: he wants to be an English teacher.

达瓦有个梦想：当一名英语老师。

Discuss the countermeasures and ways to increase income of farmer in Dawa

十一五期间提高大洼县农民收入的对策与途径

Oil production decline law of Wa 20 block in Dawa Oilfield

大洼油田洼20区块产油量递减规律研究