positive anomaly 异常场强度的数值高于正常场的统称正异常，为正数值。绘平面等值线图时多用实线表示。在剖面图上，正常场零值线以上的部分为正异常。
井温曲线正异常段 warm nose
大幅度正异常 large-amplitude positive anomaly
修正布格异常 modified Bouguer anomaly
自动表层时间异常校正 ANSAC
正温度异常 positive temperature anomaly
异常正常 Normal species
正常以及异常温升测试 Normal&Abnormal Temperature Test
正常变异 NORMAL VARIANT ; normal variation
东向分量在整个区域呈现微弱的正异常。
Eastward component t shows weak positive anomaly in the studied region.
大同地震前多井出现水氡的趋势性正异常，是与张北地震水化前兆最显著的不同之处。
Before the Datong earthquake, water radon in many Wells showed trend positive anomalies, which is obviously different with the hydrochemical precursors of Zhangbei earthquake.
在推覆体之下有明显的重力正异常，可能存在多类型的隐伏圈闭，是勘探油气的有利目标。
There is an obvious gravity positive abnormality under the nappe and it is possible that there are various types of hi...
应用推荐