derrick telescoping
基本解释
- [能源科学技术]起升井架
英汉例句
- The structure of the derrick is triple-section telescoping structure, substructure is parallelogram structure, can be lifted by hydraulic cylinder.
井架采用三节伸缩式结构，底座采用平行四边形结构，能用液缸整体起升。
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双语例句
词组短语
- telescoping derrick 伸缩式井架;伸缩式钻塔
- telescoping shaped derrick 伸缩式井架
短语
专业释义
- 起升井架