Enzo恩佐enn.半方；N 字prep.作为；一起；在 ... 中enantiosymmetric polymerization对映(体)对称聚合enantioselective esterification手性选择性酯化Enviromental quality evaluation环境质量评价enalysis of volatile ingredient挥发性物质分析Enhancing customer satisfaction增强顾客满意Encircling key points of speech掌握演讲的支点En-vironmental Control System环境控制系统enumeration type representation枚举类型表示法Envirofinmental Radioaclivities环境放射性影响enhancing sensitivity technique增敏技术