论文部分内容阅读
Asoneoftheprecisealloys,constantelasticalloyisofgreatimportanceduetostabilityofelasticmodulusandinherentfrequencyinadefiniterang
Asoneoftheprecisealloys, constantelasticalloyisofgreatimportanceduetostabilityofelasticmodulusandinherentfrequencyinadefiniterang