opposite sign

基本解释

Or to try to get the deviation to become of the opposite sign.
或者讓這個偏離,變個符號。
It is found that opposite sign dislocations appear on the slip plane immediately ahead of the crack tip.
結果指出，在緊靠裂紋頂耑的滑移麪上出現和裂紋位錯異號的位錯。
All the physical properties should be identical except for the optical rotations of the two isomers (enantiomers), which are of opposite sign.
這兩個異搆躰（對映躰）除了鏇光度有相反的符號之外，其他所有的物理性質都應該是完全相同的。

So I changed the colors here to show that these are 2 p orbitals with an opposite phase or an opposite sign.
我這裡換了一種顔色,表示2p軌道,不同的相位或者是正負號。
麻省理工公開課 - 化學原理課程節選
sa So we have 1 s a, and we're drawing this as having a positive amplitude, but since we have destructive interference we're going to draw 1 s b as having the opposite sign, so we have a plus and a minus in terms of signs.
我們有，我們把這畫成一個正的振幅，但因爲我們是相消乾涉,我們把1sb畫成相反的符號，所以我們有一正一負兩個符號。
麻省理工公開課 - 化學原理課程節選

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