At present, the research and development of a machinable magnetizer at home and abroad have created a favorable condition for further development of induction heating technology.
It's more practical to use aluminum for aircraft building it's cheap, strong, and machinable while titanium is expensive and isn't easy to get despite being the seventh most common metal on Earth.
加工试验,分析了切
刀具
特性,
论了影响刀具
造飞机更为实用，因为
便宜、坚固
易于加工， 而钛则昂贵
