The problem can be illustrated as a free boundary problem with two moving boundaries.

该问题可描述为一个具有两条移动边界的自由边界问题。

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In present work, the quantum theory of scatter of grain boundary to solutes has been proposed to explain the solute segregation on moving boundaries.

本文提出，可以用晶界对溶质原子热运动散射的量子理论来解释溶质原子在运动晶界上的偏聚现象。

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To avoid the mesh distortion in the airgap arising from the relative movement between the stator and rotor, the moving boundaries are incorporated into the finite element model.

同时，为避免由于电机定、转子相对运动而引起的气隙场域剖分网格的畸变问题，在气隙中引入了运动边界。

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By moving outside the boundaries of the traditional health system, it would reach people where they work and live.

FORBES: Jeanne Lambrew And John Podesta

Pupils from England, Wales and Northern Ireland were offered the chance to resit the papers free of charge after the row over the moving of grade boundaries.

BBC: Education & Family