单词	花樣棋盤布
释义	同Checkered
随便看	operations multitask operations office operations of nature in creation operations (ops) operations order {= opord} operation, spacecharge-limited operation-- spacecharge-limited operation speed operations per minute operations per minute (opm) operations per minute {=opm} operations per minute，opm operations per second operations per second，oss operationsplan operations planning operations related outage operations research operations research cycle operations research dynamic programming operations research model operations research ; operational research operations research [= operational research] operations research (or) operations research {=or}