changes sign翻译

changes sign的基本解释

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变号:在数学中,表示一个数值从正数变为负数,或从负数变为正数的过程。

例句

It is locally convex in the sense that it has no loops and the curvature never changes sign.它的局部是凸的,因为它没有环路,且曲率永远不会改变符号。
That means the tip is particularly good at mapping out the "nodes" or places where the molecule's orbital changes sign.也就意味着尖端很善于绘制出分子轨道变符号的“节点”或位置。
It is caused by changes in ocean temperatures, with the first sign being abnormal warming in the Pacific .受海洋温度变化的影响而产生的厄尔尼诺现象,其最初迹象是太平洋异常变暖。

短语

coefficient that changes sign 变号的系数
sign changes 符号变化 ; 体征变化
sign of weather changes 天气变化预兆
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