| Acknowledgements | 第1-7页 |
| Abstract in English | 第7-8页 |
| Abstract in Chinese | 第8-11页 |
| Chapter 1 Introduction | 第11-14页 |
| ·Research purpose | 第11-12页 |
| ·The significance of the research | 第12-13页 |
| ·Data selection | 第13-14页 |
| Chapter 2 Literature review | 第14-20页 |
| ·Overseas studies on machine translation and their productions | 第14-17页 |
| ·Studies on machine translation in China | 第17-18页 |
| ·Research question | 第18页 |
| ·Theoretical supports | 第18-19页 |
| ·Practical meaning | 第19-20页 |
| Chapter 3 A preliminary study | 第20-40页 |
| ·Main working principles and deficiencies of rule-based machine translation | 第20-24页 |
| ·Direct translation system | 第21-22页 |
| ·Transfer approach | 第22-23页 |
| ·Inetrlingual approach | 第23-24页 |
| ·Main working principles and deficiencies of example-based machine translation | 第24-25页 |
| ·Main working principles and deficiencies of statistical machine translation | 第25-26页 |
| ·Studies on mistaken examples translated through traditional single MT method | 第26-40页 |
| ·The possible difficulties in Chinese-English machine translation | 第26-34页 |
| ·Studies on MT of abstracts of Chinese science essays | 第34-40页 |
| Chapter 4 Multi-engine MT and Chinese abstract translation | 第40-51页 |
| ·Establishment of multi-engine machine translation | 第40-45页 |
| ·The overall structure of the system | 第41-42页 |
| ·Knowledge base subsystem | 第42-43页 |
| ·Translation subsystem | 第43-45页 |
| ·Multi-engine MT and trustworthy MT | 第45-47页 |
| ·Multi-engine MT and abstract translation of Chinese science essays | 第47-51页 |
| ·Analysis on the linguistic features of the abstracts of Chinese science essays | 第47-48页 |
| ·Requirements in translating Chinese abstracts into English abstracts | 第48-51页 |
| Chapter 5 Results | 第51-58页 |
| ·Multi-engine MT and its way of solving diverse problems in abstract translation | 第51-52页 |
| ·A small model of Chinese-English MT set within environmental science as an example | 第52-56页 |
| ·Conclusion | 第56-58页 |
| Bibliography | 第58-60页 |
