Angles of less than 90 degrees are called acute angles.
小于90度的叫。
The characteristic of hyphae are regular width and septation with typical branching in acute angle (about 45 degrees) in PAS stain.
病理切片经由PAS染色清楚可见麴菌菌丝，有分隔，分枝状，约45度，为特徵。
In contrast to prominent ear with underdeveloped antihelix fold, over-convex-antihelix ear reveals a sharp acute angle of antihelix and over-concaved scapha.
摘要相对于“朝风耳”的对耳轮过度平坦外翻，对耳轮过度前凸则是厉害的对耳轮前凸及舟状部内陷。
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An acute angle is one that is less than 90 degrees.
锐角是于 90 度的角。
Less than 90 degrees it's an " acute angle" , " acute" .
于90度就是“锐角” ，“锐角” 。
They glided as far as the acute angle of the Rialto and turned back.
他们一直滑到里亚托河的锐角， 然后折。
The hurricane rains fly always at an acute angle, borne outward by the fierce pressure.
飓风雨总是以锐角飞来， 被猛烈的压力带向外。
Every time you make a cut that reaches an edge, it either makes an acute and an obtuse angle, or two right angles.
割到达边缘时，它要么形成一个锐角和一个钝角， 要么形成两个直角。
If our table is 'really' rectangular, it will look, from almost all points of view, as if it had two acute angles and two obtuse angles.
如果我们的桌子“真的” 是长方形的， 从几乎所有的角度来看， 它看起来都好像有两个锐角和两个钝角。
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划词翻译
详细解释
叫
溪（下） 
有分隔，
分枝
于 90 度的角。
。
割到达边缘时，它要么形成一个锐角和一个钝角， 要么形成两个直角。
