(noun.) an unexpected acceleration or hastening; 'he is responsible for the precipitation of his own demise'.
(noun.) the act of casting down or falling headlong from a height.
(noun.) the falling to earth of any form of water (rain or snow or hail or sleet or mist).
(noun.) the process of forming a chemical precipitate.
(noun.) the quantity of water falling to earth at a specific place within a specified period of time; 'the storm brought several inches of precipitation'.
录入:凯思琳
校对:凯尔西