案情重大、复杂
important and complicated case
超重大型钢桁架
overweight and large steel truss
城市重大危险源管理系统
city major hazard management system
城镇职工重大疾病保障水平
medical insurance for urban employees
level of employee medical insurance for serious disease
船舶重大缺陷
vessel’s fatal deficiencies
非常重大的收购事项
very substantial acquisition
工业重大危险源
industrial major hazardous installations
后颅窝扩大重建术
posterior fossa reconstruction
化学品重大危险源
great hazard sources of chemical