In the present comprehensive quality of college student, there is a series of problem, this and individual discrepancy school educational social environmental and family influence has close relation.

当代大学生综合素质中存在着一系列的问题，这与个体差异、学校教育、社会环境和家庭影响都有着密切关系。

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Since it is used in different environment and with the discrepancy of product quality, the RTV coating used in different area has the problem of ageing and tenure of use.

由于使用环境和产品质量的差异，不同地区使用的RTV涂料都存在着老化和使用年限的问题。

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Differentiation of a variety of forage with minor nutrient discrepancy by using GI can indicate that GI is an authoritative index evaluating forage quality.

使用GI值能明显区分养分含量差异很小的不同种类牧草，这说明分级指数是评价牧草营养价值的最权威指标。

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