net migration meaning in English

净迁移
净移民

As a consequence of improved economic performance in recent years there has been a significant increase in net migration
近几年随着经济状况的改善，净移入人口数量有显著增加。
Because there is no routine method which can apply mechanically , survival rate , fertility rate , net migration rate in the future is difficult forecasted
由于没有墨守成规的方法可以套用，因此这也成为应用队列要素法进行人口预测的难点之一。
Rather , the difficulty lies in the concern that some of us may have about a possible net migration of financial - sector activity away from the domestic markets as a result of the establishment of those linkages
在资讯科技发达的今天，建立这些联网并不困难，困难在于部分经济体系也许会担心金融活动可能会因此由本地市场转移至其他经济体系的市场进行。