单词	罕發
释义	罕發 hǎn fā很少發生。
随便看	aeration of blood aeration of rudder aeration of sediment aeration of sewage Aeration of the charge room aeration of the fluid aeration of water Aeration Optimization Control System aeration oxidation aeration oxygenation aeration oxygen cell aeration period aeration phase aeration pipe aeration plant aeration point aeration pope aeration porosity aeration porosity limit aeration pressurized bio-contact aeration process aeration properties aeration purify aeration quantity aeration ramp