Electro Convulsive Shock Therapy抽搐电休克疗法 European Carotid Surgery Trial欧洲颈动脉外科试验(法) Exercise Cardiac Stress Test锻炼心脏压力测试 European Charter for Sustainable Tourism欧洲宪章旅游可持续发展 Expeditionary Combat Skills Training远征作战技能培训 heat-stable enterotoxin of Escherichia coli耐热性大肠杆菌肠毒素