substitution site in crystal 晶体中占位
b-site substitution b位取代
substitution in Mn site Mn位替代
substitution in La site La位掺杂
a-site substitution a位置换
A site substitution and A, B site cosubstitution can improve the properties of the ceramics, but only B site substitution can not.
指出A位替代和A、B位共同替代能有效改善陶瓷的性能，单纯B位替代不利于陶瓷性能的改善。
This paper, taking Chinese Fir & Masson's pine as examples (objects), studied the site quality evaluation by the substitution of tree species in the same site types.
我们以杉木和马尾松为对象，研究了在相同立地类型中的树种代换评价方法。
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