短语词组短語buffer r function 緩沖酌buffer revenue function 緩存收益率buffer 's function 緩沖器性能oxygen buffer function hemoglobin 釋義血紅蛋白氧緩沖功能damping buffer function flag 阻尼緩沖功能oxygen buffer function of hemoglobin 血紅蛋白氧緩沖功能 返回 buffer function