buffer是什么意思

buffer英[ˈbʌfə(r)]美[ˈbʌfɚ]n.缓冲器; 起缓冲作用的人（或物）; [化] 缓冲液，缓冲剂; [计] 缓冲区;vt.缓冲; [化]把缓冲液加入（溶液）;[gs-27o0-0.html" target="_blank" >例句]Keep savings as a buffer against unexpected cash needs存些积蓄以备不时之需。