Because of the inner core of the earth, there will have two nutation modes related to the earth's rotation, i. e. a prograde free core nutation (PFCN) mode and a inner core wobble (ICW) mode.
由于内核的存在，将出现两个新的与地球自转有关的章动模式，即顺向的自由核章动(PFCN)和内核摆动(ICW)模式。
It is characterized by the prograde trajectory is parallel nearly to the segment of retrogression, and the early retrograde metamorphism with coupling of decompression with a temperature decrease.
它的特征是进变质与退变质路径近于平行，早期退变质作用为降温、降压过程。
应用推荐