We have seen how the construction of an artifact and its description in terms of design principles and technological rules are steps in the process of developing more comprehensive bodies of knowledge...谢谢！ 看得出你是高手，我还想问一下这个句子的成份？ 比如have seen和后面的are那个是谓语？后面是个宾语从句，句式是 We have seen sth。谓语是 have seen，宾语 Sth = how the construction...design throries. 个人看法，供大家探讨。