isopor

地磁等年变线

词形变化

isopors 复数 isopors

释义与例句

n.
  1. 1.

    A line on a map that joins places of equal annual change in a geomagnetic property; an isoporic line.

词源

From iso- + Ancient Greek πόρος (póros, “journey”), on the basis that isopors are "lines of equal travel".

来源：wiktionary