再通过比拟，以作用于球面扁壳内外边界上的均匀分布的相当边界力矩来替换温度效应。

By analogy, the thermal effect is replaced by an equivalent edge-moment loaded uniformly along both boundaries of the shallow spherical shell.

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在外边界上统一应用适合于人工源的一阶吸收边界条件来形成边值问题，可减小基于平面波假设造成的人为截断边界的影响。

The first order absorption boundary condition is applied to the outside boundary, which can avoid the error caused by the plane wave assumption.

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在围城的内外边界上存在一个由竹子与玻璃组合的空间，它是半室内、半室外的；

There's a space on the border of the inside and outside of the fortress, combining with bamboos and glass, which is half-inside and half-outside.

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for instance, for the thermos with the coffee in if you place the boundary in the inside wall of the glass or the outside wall of the glass and the inside of the thermos, that makes a difference; different heat capacity, etcetera.

比如说，对于装咖啡的热水瓶来说,你把边界设置在瓶胆的内壁上,或者设置在瓶胆外壁上,或设在热水瓶里面，情况都是不一样的;,有不同的热容等等。

麻省理工公开课 - 热力学与动力学课程节选