同时又受晶体的晶格类型、化学键的简繁程度，化学成份的特性及其复杂程度、离子半径等多种因素制约。

It is also determined by such factors as the kind of crystal lattice, the characteristics of chemical bond, the features of chemical composition, ionic radius and the others.

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在原子价电子层结构的基础上提出了原子结构半径和键参数的概念，并利用键参数研究碱金属卤化物晶格焓。

This article makes a detailed analysis of the definition of atomic radius and ionic radius, so that the two terms can be well understood and used in the course of teaching.

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