转臂起重机 meaning in English
bracket swing crane
derick crane
derrick crane
rotating derrick
Examples
- Work platforms suspended from cranes or derricks - safety requirements
起重机或转臂起重机的悬吊工作平台.安全要求 - Travelling derrick crane
移动式转臂起重机
bracket swing crane
derick crane
derrick crane
rotating derrick