The main means used in the paper are group theory, Galois field, module algebra and linear algebra.
文中涉及的主要理论有群论，伽罗华域，模代数和线性代数。
The immersed subbundles of free bundles and the immersed free subbundles of any module bundles are constructed, by using theoretics of tensor and module algebra.
利用张量和模代数知识，构造出了自由丛的浸入子丛和任一模丛的浸入子自由丛。
The fractional ring(module)and the interrelated localization method are the important tools for commutative algebra.
分式环和分式模以及与之相关的局部化方法是交换代数中一个重要工具。
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