normal polarity

基本解释

For silica-based normal phase chromatographic columns a solvent washing system with increased polarity is effective.
矽膠基質正相色譜柱用極性逐漸增強的溶劑系統沖洗；
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).
地球磁場多次發生南北（正負）磁極位置的變換和白堊紀超靜磁帶（CNS）的異常現象，這已爲大家所公認。
Paleomagnetic measurements demonstrate that the Jijiagou section which is the stratotype one of Baode Stage of the Neogene in China records 12 normal and 11 reversed polarity zones.
古地磁測量表明，中國新近系保德堦界線層型，山西保德冀家溝剖麪記錄了 12個正極性段與 11個負極性段。