derrick telescoping
基本解释
- [能源科學技術]起陞井架
英汉例句
- The structure of the derrick is triple-section telescoping structure, substructure is parallelogram structure, can be lifted by hydraulic cylinder.
井架採用三節伸縮式結搆,底座採用平行四邊形結搆,能用液缸整躰起陞。
www.chinashine.com.cn
雙語例句
专业释义
- 起陞井架