migration period

One peak appeared in the planned migration period after 1949, and the other is the migratory people of the Puppet Manchuria State.

人口增加最高峰出现在1949年后的计划移民时期，伪满时期的流民则构成了研究区近百年另一个显著的移民高潮；

these strategies have widely different characteristics with respect to migration effort and migration period, as shown in figure 1.

这些战略在迁移所需的工作量和迁移周期方面差异很大，见图1。

the variation or distribution of fiber angles provides evidence that yam twist determines migration period of fiber within the yams.

纤维角度的分布或变化情况证实了纱线内部纤维的转移取决于纱线的捻度。

one such approach that can be used by administrators during their migration period is described below.

在迁移过程中，管理员可以使用的方法描述如下。

In Spring migration period of 2009, the meet day of siberian crane is on March 12, records of individual 3.

在2009春季迁徙期，白鹤的首见日为3月12日，记录个体3只。