准点率

mín háng bù mén de shù jù xiǎn shì háng bān de zhǔn diǎn lǜ yuè lái yuè dī

民航部门的数据显示，航班的准点率越来越低。

Data from the civil aviation authority show that flights have become less and less punctual.

qǐ fēi zhǔn diǎn lǜ

起飞准点率

takeoff on time rate