E2 1. British EnglishBrE technicalTEE the written abbreviation of earth (=a connection between a piece of electrical equipment and the ground) earth〔地线-电器与地面连接的导线〕的书面缩写 2. DFNthe abbreviation of E number E number〔E数〕的缩写
3. the written abbreviation of east or eastern east〔东〕或 eastern〔东方〕的书面缩写