前悬架车架安装螺栓
front suspension chassis mounting bolt
脚手架搭拆费用
Scaffold Building and Removing Cost
绞盘导索环架组件
winch fairlead frame group
交直流同塔混架
AC and DC transmission lines installed on the same tower
脚手架和平台
construction scaffolding & platforms
交易服务层。SNA架构模型中的第7层。
transaction services layer