Occupied相关论文
The pedestrian movement is more complex than vehicular flow for the reason that people are more flexible and intelligent......
CO2 laser is employed to join a piece of powder metallurgical material (PMM) to a stainless steel in butt joint welding ......
Profile of China’scultural trade China’s modtern cultural trade began with small scale in the mid-term of the 1980s. T......
今年是香港回归十周年，阅读下表内容，写一篇介绍香港的短文来纪念这一重大事件。 注：本文中所涉及到的图表、注解、公式等内容请以......
The Shipborne acoustic communication system of the submersible Shenhai Yongshi works in vertical,horizontal and slant ch......
[目的]研究红尾伯劳在牡丹江地区迁徙和繁殖规律。[方法]以牡丹江师范学院植物园为观察点，于2004～2010年对红尾伯劳的迁徙和繁殖规律......
