过渡金属杂质 meaning in Chinese

transition metal impurity

According to the development trend and practical need of vo _ 2 thin film , in this study , some basic research in the field of vo _ 2 film property modification by doping with transitional metals at various valences such as zr ~ ( 4 + ) and cr ~ ( 3 + ) has been focused on
针对vo _ 2薄膜的研究发展动向和实践的需要,本论文主要在掺入不同价态的过渡金属杂质( zr4 +以及cr ~ ( 3 + )对vo _ 2薄膜性能产生的影响等方面进行了基础研究。