机械学

A study of any machine or mechanism shows that each is made up of a number of movable parts.

机器，机械学表明每台机器都是由很多的零件组成的。

The bovine pericardial valves usually do not need anticoagulant therapy after implantation, but they are progessively failured in the heart and require reimplantation 5-10 years after their initial implantation.

引起牛心包瓣原发性损坏的生理学和病理学因素与机械学因素同等重要。从我院再次手术中收集到的22只失效瓣膜来看，在瓣架尖端区和侧边区的损坏发生率分别占30.3％和36％，撕裂、磨损和钙化的发生率分别占25.8％、18％和31.6％。

This course is divided into two parts: Part I presents an overview of the basic theory of dynamic testing analysis.

本课程是一门综合性的技术基础课，涉及到电子学、自动化科学、机械学、信息科学及计算机科学等多门学科。

Tsinghua University Department of Precision Instruments and Mechanology, Beijing 100084,China

清华大学精密仪器与机械学系，北京100084

Department of Precision Instrument and Mechanology, Tsinghua University, Beijing 100084, China

清华大学精密仪器与机械学系，北京 100084

Department of Precision Instruments and Mechanology,Tsinghua University,Beijing 100084,China

清华大学精密仪器与机械学系，北京 100084

Department of Precision Instruments and Mechanology,State Key Laboratory of Precision Measurement Technology and Instrument,Tsinghua University,Beijing 100084,China

清华大学精密仪器与机械学系精密测试技术及仪器国家重点实验室，北京 100084

Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China;Beijing Institute of Astronautical Systems Eng., Beijing 100076, China

清华大学精密仪器与机械学系，北京100084；北京宇航系统工程设计部，北京100076

Dept.of Precision Instruments and Mechanology,Tsinghua University,Beijing100084,China

清华大学精密仪器与机械学系，北京100084

This is a highly complex and intercrossing advanced subject, which contains a great deal of knowledge of other subjects, such as mechanics, computer science and engineering, cybernetics and control engineering, electronic engineering, artificial intelligence, signal processing technique, nerve network technique, fuzzy theory and so on.

数字控制系统设计是一门高度综合与交叉的前沿学科，涉及机械学、计算机科学与工程、控制论与控制工程学、电子工程学、人工智能、信号处理技术、传感器技术、神经网络技术、模糊理论等多种学科。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。