Itemset项集itemn.项目；条款；一件商品（或物品）；一则或一条新闻adv.也Item is not available locally.项目在本地不可用。Item Name Policy Review Committee项目命名政策审查委员会Item Dollar Summary Stratification物品款项综合分层Item by item sequential inspection逐项序贯检验item characteristic curve equating项目反应理论Item and two aggregate functions.项和两个聚合函数。items stipulated in the regulations章程中规定的事项Item Management Vehicle Data System项目管理车数据系统Item-Based collaborative filteringItem-Based协同过滤Item Logistics Data Transmittal Form物品后勤数据传输格式