1) pre-emergency marked layers
辅助标志层
1.
Finding pre-emergency marked layers using finite difference dividing methods for oil layer comparison;
用有限差分网格方法寻找辅助标志层——以南梁—华池油田为例
2) Subsidiary Signs
辅助标志
4) assistant marker
辅助标记
5) assistant identification
辅助标识
1.
In order to further stress the advantages of the class and order number of books,this paper summarizes the same kind of books which uses the same class and order number but is difficult to be identified,and gives different assistant identifications.
为了进一步突出图书种次号的优越性,对一些难以辨析的使用同一种次号的同种书进行了概括,并且给予了不同的辅助标识。
6) auxiliary annotating
辅助标注
补充资料：标志层
已知地质年代，并具有特殊性质和特征，易于辨认的岩层。如岩石的性质、颜色、厚度及所含的化石、杂质等特征。常用来进行地层对比。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条