... go to the English teachers at the Faculty of Foreign Languages, Hanoi University of Technology for providing me with the valuable knowledge of English, especially English for Mechanical Engineering.Last ... like to thank the staff members at Post Graduate Studies Department, University of Languages and International Studies, Vietnam National University - Hanoi for supplying me with valuable knowledge, ... Mechanical Engineering.Last but not least, I am grateful to my family and my friends whose support and encouragement have been a great source of inspiration for me to complete the thesis.i...