What does 平稳 (píngwěn) mean in English?

Card 1937HSK Level 41937/3571
CARD1937
PROGRESS54%
平稳
平穩
píngwěn
steady and smooth(Adjective)
Click to reveal
← Previous↑ DeckNext →

Reveal: Click/Space/Enter/↑↓/w/s/j/k•Navigate: ←→/h/l/a/d