migration

mass migrations.大规模的迁移

seasonal migration. 季节性迁徙

cell migration细胞移行

migration velocity渗移速度；迁动速度

bird migration鸟类迁徙

moisture migration水分移动

data migration数据迁移；资料移转

migration rate迁移率；迁徙率；迁移速度

migration algorithm偏移算法

internal migration内移行

真题例句...The Urbanization — migration away from the suburbs to the city center — will be the biggest real estate trend in 2015...第二套CET42017.6阅读理解

真题例句...US migration was twice the rate of European Union states...第三套CET42013.12阅读理解

真题例句...The migration of old people from cold to warm places made many jobs available to the young...第三套CET42013.12阅读理解