平台框架结构
plateform frame structure
框架式结构设计方法
frame type structure design method
导管架式海洋平台结构
jacket offshore platform structure
钢结构平台
steel-constructed platform
固定式海洋平台结构
fixed offshore platform structure
海洋平台结构
offshore structures
offshore platform structures
offshore platform structure
offshore platfor m structure
ocean platform structure
集成平台框架
integration platform framework
卡塞格林结构式平行光管
cassegrain structure collimator