Unit 1 预习练习参考答案Passage 11. 科学知识2. 实践知识3. 应用科学4. 科学原理5. 操作条件6. 预期功能7. 机械原理8. 民用建筑9. 技术学科10. 分支学科11. 基础设施12. 制造工程1. scientific knowledge2. practical knowledge3. applied science4. scientific principle5. operating condition6. intended function7. mechanical principle8. civilian structure9. technical discipline10. sub-discipline11. infrastructure12. manufacturing engineeringTask 11. Tissue engineering has been a newly developed _ whic