西方古典推拉理论认为，劳动力迁移是由迁入与迁出地的工资差别所引起的。现代推拉理论认为，迁移的推拉因素除了更高的收入以外，还有更好的职业、更好的生活条件、为自己与孩子获得更好的受教育的机会、以及更好的社会环境。
本文运用推拉理论对影响中低层灵活就业群体最终实现就业的因素进行分析。
Based on the push-and-pull theory, this paper analyzes the factors that influence the final realization of the mid and low class's flexible employment.
他们把他们的理论叫做“海底扩张”。这个理论解释了，随着海底扩张，板块在不同的方向上被推拉。
They called their theory "sea floor spreading." the theory explains that as the sea floor spreads, the tectonic plates are pushed and pulled in different directions.
本文论述了利用智能推拉技术设计开发个性化主动信息服务系统的理论与实践。
This article discusses the theory and practice on developing the IIPP-based active information service system to better fulfill the user's individualized requirements.
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