Each unit should have only limited knowledge about other units: only units "closely" related to the current unit.

每个单元对其他单元只拥有有限的知识，只了解与当前单元紧密联系的单元；

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The analysis units are being broadened, the comparativeness of the research object and data are being valued, which are all closely related to the issues of research methods.

分析单位不断拓宽，注重研究对象和资料数据的可比性，这些都与研究方法问题密切相关。

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Two lithostratigraphic units, the "Kayitou Formation" and the "Kayitou Sandstone Shale Beds", are closely related to each other but are not entirely the same in their implications.

“卡以头组”和“卡以头砂页层”两个岩石地层单位关系密切，但含义不完全相同。

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