hollow rod fuel pin 中空燃料细棒
Brass Hollow Rod 空心棒
hollow rod assembly 空心杆总成
hollow-rod string [油气] 空心抽油杆柱
hollow-rod churn drill 空心杆冲钻 ; 空心冲钻
Hollow-rod type 高品质气弹簧
hollow fuel rod 中空燃料棒 ; [核] 空心燃料棒
hollow-rod drilling 空心钻杆钻进
Dr Fink's fibre consists of a hollow rod of an insulating polycarbonate material with a 30-micrometre ring of a piezoelectric polymer running along its length.
芬克博士研发出的这种纤维由一种由绝缘聚碳酸酯材料制成的空心杆组成，空心杆的内部有一种30微米的压电聚合物材料制成的环。
Active water or light oil is sent downhole through hollow rod to reduce oil flow resistance, thus producing heavy oil from deep formation through screw pump.
利用空心杆向井筒内掺入活性水或稀油，降低油流阻力，实现应用螺杆泵开采深层稠油。
In accordance with downhole tubing sticking by sand burial accident, this paper proposes hollow rod sand washing after analysis of downhole string structure and hydraulic calculation of sand grain.
针对处理井下油管砂埋遇卡事故作业中出现的技术问题，在分析井下管柱结构及砂粒的水力计算的基础上，提出了空心抽油杆冲砂工艺处理措施。
应用推荐