锐角三角形

锐角三角形几何不等式的差分代换证法及应用程序

A difference replacement demonstration of the geometric inequalities of acute triangle and the corresponding application program

我每天在窗口感受到阳光、影子、车流和锐角三角形的变化。

Every day I feel the sun in the window , shadows , traffic , and changes in acute triangle .

试验结果表明：采用锐角三角形的分布腔结构及基于多齿刀具切削法的铜纤维烧结毡能显著提升换热器的性能。

And the results showed that : the heat exchanger which uses the heat transfer plate having the sub-acute triangle structure and porous copper fiber sintered felt which is fabricating by the copper fibers manufacturing by the multi-tooth cutting method had excellent performance .