延拓场 meaning in English

continuation field

The values of analytical continuation at different depths from the potential field downward constitute the continuation field , on which the principal component analysis is made
摘要位场向下在不同深度上解析延拓的值构成延拓场，可对延拓场进行主成份分析。
The theoretical model calculation shows that , under the condition without any priori information , the energy weight value resolved from the continuation field or the maximum characteristic value of the matrix related to the continuation field can be used to judge the position of the potential field source , thus determining the burial depth of the geological body
理论模型计算表明：在没有任何先验信息的条件下，可以用延拓场分解的能量权值异常或延拓场相关矩阵的最大特徵值，判断位场场源所在位置，从而能确定地质体的埋深。