每秒平方十五公尺

每秒 meiˇ miaoˇ

(Each second, Every second, Per) Each second, Every second, Per second

平方 pingˊ fangˉ

(Square) Square

十五 shiˊ wuˇ

(Fifteen) Fifteen, 15

十五公尺 shiˊ wuˇ gongˉ chiˇ

(Fifteen) Fifteen meters

公尺 gongˉ chiˇ

(Length measure, M, Meter) Meter, M, Meter, Length measure