自然对流可能影响前面所述的弱强制对流热传递系数。

Natural convection can affect the heat transfer coefficient in the presence of weak forced convection …

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用于弱类型变量，以将它们强制转换为另一种类型。

Use with weak typed variables to cast them as another type.

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实际上，相较于echr的首次亮相，如今它拥有的法律权力弱了很多，国际条约难以强制执行，即使现在法院也不能强制英国改变它的法律。

In fact the ECHR has less legal power than first appears. International treaties are difficult to enforce, and the court cannot force Britain to change its laws even now.

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