drill-stem subs
基本解释
- [能源科学技术]钻柱转换接头
英汉例句
- It shows that the fractures of drill-stem subs are ascribed to outside diameter and the irrational bend strength between inside and outside threads.
通过分析计算认为,钻柱转换接头断裂原因与外径不符合标准及内、外螺纹接头弯曲强度比不合理有关。
双语例句
专业释义
- 钻柱转换接头