软流圈

asthenosphere (geology)

to confine / to lock up / to pen in

pen (pig) / a fold

circle / ring / loop / classifier for loops, orbits, laps of race etc / CL:個|个[ge4] / to surround / to circle

circle; ring; loop (CL:個|个[ge4]) / classifier for loops, orbits, laps of race etc / to surround; to circle

to flow / to disseminate / to circulate or spread / to move or drift / to degenerate / to banish or send into exile / stream of water or sth resembling one / class, rate or grade

soft / flexible

variant of 軟|软[ruan3]