準穩旋渦結構 zhǔn wěn xuán wō jié gòu

DEFINITIONS

  1. quasi-stationary spiral structure QSSS (astrophysics)

CHARACTERS

準 zhǔn rule, guideline, standard
穩 wěn stable, firm, solid, steady
旋 xuán
HSK 6
revolve, move in orbit; return
渦 wō swirl, whirlpool, eddy
結 jié knot, tie; join, connect
構 gòu frame, building, structure