特大型油轮
very large crude oil carrier
特大型桩基础
large group pile foundation
特大雪灾冻害
big snow and frozen disaster
特大雨雪冰冻
extreme freezing rain and snow
特大圆形深基坑
super round foundation Pit excavation
特大轴力桩基托换
underpinning to pile foundation with super pressure
特弹簧硬冷加工
Extra-spring-hared cold work
特大型涡轮发电机
super-huge turbo-generator