请教专利文件的一句套话的翻译

It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and alterations may occur depending on design requirements and other factors insofar as they are within the scope of the appended claims or the equivalent thereof.
主要是其中的“insofar as they are within the scope of the appended claims or the equivalent thereof”的翻译应当是什么？其中的they指的是什么？

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应译为“ 均应包含在本发明的权利要求或等同物的范围内”。其中，they表示“various modifications, combinations, sub-combinations and alterations ”

nhy2888 wrote:
应译为“ 均应包含在本发明的权利要求或等同物的范围内”。其中，they表示“various modifications, combinations, sub-combinations and alterations ”

insofar as的意思在这里是什么呢？

个人理解是“在...范围内”