drill-stem subs
基本解釋
- [能源科學技術]鉆柱轉換接頭
英漢例句
- It shows that the fractures of drill-stem subs are ascribed to outside diameter and the irrational bend strength between inside and outside threads.
通過分析計算認為,鉆柱轉換接頭斷裂原因與外徑不符合標準及內、外螺紋接頭彎曲強度比不合理有關。
雙語例句
專業(yè)釋義
- 鉆柱轉換接頭