缩略语表英文缩写英文全称汉语名称StxCFUDMCDCNPNShigatoxinColonyFormingUnitsDryMatterCentersDiseaseControlphenylnaphthylamine志贺毒素菌落形成单位干物质疾病防治中心半乳糖苷TTCtriphenyltetrazol