The closed boundary condition at the fracture tip is more rational after transformation.

变换后假设的缝端封闭边界条件更符合实际。

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It is meaningful to study solutions to closed boundary value problems for equations of mixed type, which is closely related to physical phenomena.

混合型方程的封闭边界值问题的解的研究是很有意义的，它与物理现象紧密联系在一起。

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The paper brings forward new bubble boundary identification method for High resolution bubble image, which can automatically receive bubbles closed boundary.

对于清晰的高分辨率气泡图像，本文提出了一种新的气泡边界识别方法，能够自动地得到气泡的闭合边界。

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The closed system allows energy to transfer through the boundary but not mass.

闭系允许能量通过它的边界传递,但质量不行。

麻省理工公开课 - 热力学与动力学课程节选

Chart Analysis : The close Thursday pushed the NYSE Composite above the highs from early in the year, as prices closed above the upper boundary of the daily trading channel.

FORBES: Is the Rally Ending...Or Just Beginning?

Uzbekistan has also unilaterally closed most border checkpoints with both upstream countries, set mines along parts of the boundary with Tajikistan, and often holds up commercial traffic.

ECONOMIST: Spats over control of water roil an already unstable region