After coming to China, Matteo Ricci and his adaptive way to preach marked the beginning of a new fascinating chapter in the history of Christianity s missions.

This paper illustrates the superiority of multimedia teaching method in structural mechanics teaching,points out the advantages and disadvantages of traditional teaching method,and analyzes and discusses how to harmonize multimedia with traditional teaching method,in order to gain well teaching effect and teaching efficiency.

Main views are:multimedia teaching methods and traditional teaching methods supplement each other; multimedia software and EDA software supplement each other; multimedia software and madeself software supplement each other; the guiding position of teacher can not shake.

This paper analyzes the causes of this phenomenon in five aspects: the traditional teaching method,the over usage of native language,the students?s unused of thinking in English,the lack of environment,little knowledge about the English sound system.

With the application of network technology,traditional educational mode in higher education is challenged by network teaching.

This paper introduces the structure and principle of the vacuum vertical disc filter,describes advanced design concept and reasonable structure adopted in the vacuum vertical disc filter design,which are expected to solve the problem existing in the filter,such as agitation,load and upload of the filter plate,transmission mode,support and manufacture.