It is difficult to confirm the internal boundary condition for the fluid-solid coupling heat transfer system.

固流耦合的办法可以将固、流结合面上比较难确定的外部边界转化为系统的内部边界。

youdao

How to confirm the internal boundary condition is a difficulty for above fluid-solid coupling heat transfer system.

确定此系统的内部边界条件成为发动机传热研究的难点。

youdao

It is difficult to confirm the internal boundary condition for the above fluid-solid coupling heat transfer system.

确定上述固体、流体耦合传热系统的内部边界条件成为发动机传热研究的难点。

youdao

There's no point where the circulatory system crosses the boundary between being inside you and outside of you, it's totally internal.

循环系统绝不会,跨越人体的内外界限,它完全位于体内

耶鲁公开课 - 生物医学工程探索课程节选

For it may mean locking in concessions that are painful to the Greek-Cypriots sharing power and money with their Turkish neighbours with no promise of the demilitarisation or internal boundary adjustment that the Greeks most keenly desire.

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The internal debate within Israel must be resolved in order to define Israel's permanent legal boundary.

NPR: Jimmy Carter on Conflict in the Middle East