而且总则的规定大多比较原则和抽象，缺乏具体的实用性和可操作性。
General provisions and principles and is mostly abstract, the lack of specific practical and operable.
在分析数学中有些不等式的证明往往比较复杂，而且具体的直观含义也比较抽象。
In analysis mathematics, some identifications of inequalities are often more complicated, and concrete ocular meaning is more abstract.
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