understratum

基本解釋

Cause: one of the polychromatic overprint , understratum ink is not completely dry is covered by surface ink;
原因：其一多色疊印時，底層油墨尚未完全干燥即被表面油墨所遮蓋；
For example, in the research of amalgamation problem between AIS and radar target, it can provide understratum chart platform.
如在AIS與雷達目標融合問題的研究中，可以提供底層海圖平臺。
Basing itself on realism, understratum narration will continue to explore the possibility of human existence and innovation of literary types.
在現(xiàn)實主義的沃土上，底層敘述將繼續(xù)探索人的存在的可能性和文學形式創(chuàng)新的可能性。