由于分支机构在规模、技能要求和技术方面存在很大的差异，历史学家传统上对它们进行了单独分析。

Because the branches were highly diverse—in scale, skill requirements, and technology—historians traditionally have analyzed them separately.

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有些方面在不同的组织中存在很大的差异。

Some of the aspects are very organization specific.

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例如，一个部门定义的“客户”可能与另一个部门的定义存在很大的差异。

For example, one department might define "customer" quite differently than another department.

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