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一部机器是由一些基本元件组装而成的,要制造这部机器就必须设计出基本元件,再分别加工解决.一道几何命题如同一部机器,也可以看作是由一些基本元件组成的,论证这道题的关键就在于把它
A machine is assembled from a number of basic components. To manufacture this machine, basic components must be designed and then machined separately. A geometrical proposition such as a machine can also be regarded as consisting of some basic components. The key to verifying this issue is to put it