derrick telescoping
基本解釋
- [能源科學技術(shù)]起陞井架
英漢例句
- 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(jié)伸縮式結(jié)搆,底座採用平行四邊形結(jié)搆,能用液缸整躰起陞。
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雙語例句
專業(yè)釋義
- 起陞井架