That means that all3- D computer models of the geodynamo so far have simulated the simple, large-scale flow of laminar convection, akin to the hot mineral oil rising through a lava lamp.

• 这表示所有模拟地球发电机的三维电脑模型，目前只能模拟简单、尺度的层流对流，类似于熔岩灯里热矿物油的上升。