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- Considering small annular clearance and large hole curvature in slim hole, the nonlinear mechanics analysis of BHA is carried out by gap-element method. 针对小井眼水平井环空间隙小、曲率大的特点,应用间隙元法对下部钻具组合进行了非线性静力学分析;
- Calculations show that the annular clearance leakage by the mode of gradually reducing clearance is much less than that by the mode of equidimension clearance. 文末算例表明,渐缩间隙模型的环隙漏失量比平行平板模型的环隙漏失量小得多。
- The outside diameters of electrical submersible pump u-nits are big, structures are complex and the annular clearance between pump units and wellbore is small. 由于电潜泵机组外径大、内部结构复杂,与井筒形成的环空间隙非常小,断裂落井后,很难打捞。
- eccentric annular clearance Reynoldsnumber 偏心环空间隙雷诺数
- The annular markings on a tree indicate its age. 树的环形纹理显示其年龄。
- Cook the meat quickly at first to seal in the juices. 一开始要大火烧肉,以便保存肉汁。
- Let me tell you some details about clearance. 让我告诉你一些通关的细节。
- The putty gives a good seal round the window. 窗户四周泥的油灰密封效果很好。
- Our foil packets seal the flavour in. 我们用锡纸包装以保持原味。
- This document carries the royal seal. 这份文件上盖有王室印章。
- The seal on the bottle has perished. 瓶子的封记已经腐烂。
- He impressed his seal on the wax. 他在火漆上盖了他的私章。
- The deal needs the government's seal of approval. 这一交易需经政府批准。
- Seal (up) the window to prevent draughts. 把窗户封起来以防风。
- A round seal affixed to a papal bull. 印玺一个圆形的教皇的正式宣布训令或法令的封印
- Change Stuff Sealing for Pumps into Clearance Sealing 泵用填料密封改间隙密封
- She forgot to seal her letter before mailing it. 她忘记在寄信前将信封上。
- annular clearance 环空间隙
- The experience set the seal on their friendship. 这一经历确定了他们的友谊。
- He affixed his seal to the document. 他在文件上盖了印。