压力导数的子波变换曲线具有明显的形态特征，它是一种正负相间、具有振荡形式的曲线。
Pressure characteristic function curve with significant characters is one kind of curve with oscillation shape and its value between positive and negative.
地球磁场多次发生南北（正负）磁极位置的变换和白垩纪超静磁带（CNS）的异常现象，这已为大家所公认。
It is generally acknowledged that geomagnetic polarity has reversed many times in geological history and an abnormal geologic phenomenon is the Cretaceous normal superchron(CNS).
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