In 1975 he introduced, in place of the runic circles, figures and barographs on synoptic maps, magnetic picture-symbols about the size of his hand.

年，他采用配有数字、自动气压计的简略地图以及巴掌大小的磁性图示，取代了原有的复杂的气象圈。

youdao

In 1975 he introduced, in place of the runic circles, figures and barographs on synoptic maps, magnetic picture-symbols about the size of his hand.

年，他采用配有数字、自动气压计的简略地图以及巴掌大小的磁性图示，取代了原有的复杂的气象圈。

youdao