1.
Optimum design for double-horse head beam pumping unit with rear horse head′s outline of spiral of Archimedes
阿基米德螺线双驴头抽油机优化设计
2.
Optimum design for double-horse head beam pumping unit is a question of non-linear programming with inequality constraint condition and multi-objective function.
双驴头抽油机优化设计是一个具有不等式约束多目标函数的非线性规划问题。
3.
Two-horse head beam pumping unit rod load and torque variation
双驴头游梁式抽油机悬点载荷及扭矩变化规律
4.
Research on Rod Load and Torque of Twin-horse Head Beam Pumping Unit
双驴头游梁式抽油机悬点载荷及扭矩研究
5.
mule-head hanger
驴头上挂抽油杆的装置
6.
The Optimizing Design for the Structure of the Rear Horse-head of Special Beam Pumping Unit
异型游梁式抽油机后驴头结构优化设计
7.
He belaboured the donkey mercilessly.
他恶狠狠地猛抽那头驴.
8.
The cruel man was hitting the donkey.
那个残酷的人正在抽打那头驴。
9.
He gave the poor donkey a terrible lashing.
他狠命地抽打那头可怜的驴.
10.
He flipped at the ass with a whip.
他用鞭子轻轻抽打那头驴子。
11.
beam pumping well
游梁式抽油机抽油的井
12.
Applications of Two-winding Series Induction Motor in Beam Pumping Unit
双绕组串联感应电动机在游梁抽油机中的应用
13.
Technology Remaking and Energy Research of Double Wheel and Direct Balance Pumping-unit;
双天轮直平式抽油机的方案设计和节能研究
14.
Research on the Control System of Double-Side Linear Electrical Oil Pumping Unit;
双边直线电磁抽油机驱动控制系统的研究
15.
Analysis and Standardization on Transmission of Double-circular-arc-gear Reducer of Pumping Units
抽油机双圆弧齿轮减速器传动分析及标准化
16.
The Performance of a beam pumping unit with incremental, stroke is influenced by the linkage dimensions of the cross double rocker mechanism.
增程式游梁抽油机交叉双摇杆机构的杆件尺寸影响整机性能。
17.
double pin sucker rod
两头阳螺纹的抽油杆
18.
Study on TWACS of Concentrator Equipment for Pumping Unit Remote Monitor System
抽油电机远程监测系统集中器装置的双向工频通信研究