单语范例（未经PONS编辑处理）
英语
- The academic literature on migration flows is considerable and some of it is statistically complex.www.abc.net.au
- Pre-industrial societies did not experience large rural-urban migration flows primarily due to the inability of cities to support large populations.en.wikipedia.org
- Significant migration flows to and from the province have been recorded.en.wikipedia.org
- Unlike movement of capital and goods, since 1973 government policies have tried to restrict migration flows, often without any economic rationale.en.wikipedia.org
- Cities have always been places of integration, intense population pressures, migration flows, cultural interactions and variations in socioeconomic positioning and values.theconversation.com
- Such restrictions have had diversionary effects, channeling the great majority of migration flows into illegal migration and false asylum-seeking.en.wikipedia.org
- This turnaround will be centred in interprovincial migration flows with a diminishing net outflow turning to a small net inflow by 2018.www.troymedia.com
- Even though overpopulation, economic stagnation, and poverty all continue to create pressures for migration, they alone are not enough to produce large international migration flows.en.wikipedia.org
- The model predicts, that the migration flow is proportional to the population of the cities/countries, and it is reciprocal in a quadratic order in the distance between them.en.wikipedia.org
- A strong migration flow is the key to this.www.australiaforum.com
是否要添加一些单词、短语或翻译？
请发送新条目。