query service短语⁴³⁴⁸⁰ 基本例句 咨询服务 The basic merchandise information is distributed among some servers, which can provide privacy preserving merchandise information query service using private information retrieval scheme; 在该模式下，商品基本信息在服务器间作分布，结合私有信息检索技术提供商品信息相关的隐私保护；361xs