1) steel spar
空心铁杆
2) iron core sleeve
铁心顶杆
3) hollow core
空心铁心
4) hollow rod
空心杆
1.
Application of electric heating by hollow rod in Baolige Oilfield.;
空心杆电加热技术在宝力格油田的应用
2.
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。
3.
The light hydrocarbon is mixed with heavy oil in hollow rod to decrease the viscosity of heavy oil.
对稠油粘温关系和深井举升工艺进行了研究 ,结合实验室掺稀油降粘效果研究结果 ,对空心杆泵上和泵下掺稀油举升工艺的可行性进行了研究。
5) hollow connecting rod
空心连杆
1.
Stability analysis on the hollow connecting rod of φ56 mm′s three cavities pump;
φ56mm串联式三腔抽油泵空心连杆稳定性分析
6) hollow rod
空心钻杆
补充资料：铁心石肠
1.犹言铁石心肠。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条