Fashions may vary significantly within a society according to age, social class, generation, occupation and geography as well as over time.

时尚可以随着时间的推移根据社会中年龄、社会阶层、辈分、职业和地理发生明显的变化。

youdao

Through descriptive analyse we find: First, the occupation mobility rate of son generation not always higher than father generation's in different countries.

研究认为：通过描述性分析，我们发现：首先，在不同类型的村庄，子辈的职业流动率并不一定比父辈高。

youdao

Based on the model, direct search method is presented which can save the computing space and CPU occupation time, enhance the efficiency of decision rules generation.

基于数学模型，提出直接搜索的转换方法，节省了运算空间，降低了算法的时间复杂性，提高了规则生成的效率。

youdao