不穩定氣流 bù wěn dìng qì liú

DEFINITIONS

  1. turbulent

CHARACTERS

不 bù
HSK 1
no, not; un-; negative prefix
穩 wěn stable, firm, solid, steady
定 dìng
HSK 3
decide, settle, fix
氣 qì air, gas, steam, vapor; spirit
流 liú
HSK 4
flow, circulate, drift; class