Migration is usually defined as "permanent or semipermanent change of residence".

移民通常被定义为“永久或半永久的居住变化”。

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In machine construction, couplings are used to effect a semipermanent connection between adjacent rotating shafts.

机械构件中，联轴器可以用来实现相邻两根旋转轴的半永久性联接。

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One current solution is, if I'm going to apply a semipermanent transform to a view (and not merely waggle it temporarily somehow), to remove all constraints affecting it.

当前的一个解决方案是，如果我打算申请一个半永久性变换到一个视图(而不是仅仅来回动它暂时以某种方式)，以消除影响这一切的约束。

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After a decade of on-again, off-again recession, Japan appears to be falling into a semipermanent state of economic decay.

FORBES: Magazine Article

Such a mismatch hasn't happened since the country was founded, largely because its greatest wars have tended to be brief interludes, not semipermanent features.

WSJ: When the Troops Were Very Young

The trend toward monitors got moving when cardiologist George Klein, of the University of Western Ontario, first approached Medtronic in 1989 with the idea of a semipermanent implant to measure heart rhythms.

FORBES: Magazine Article