A new kind of long stroke wheel style pumping unit 一种长冲程转轮式抽油机
The design of chain type long stroke pumping unit 链式长冲程抽油机设计
A kind of long - strike oil pumping machine using planet - gear 一种行星齿轮长冲程抽油机的换向机构研究
The research on lower super - long stroke pumping unit with a cylinder - chain 圆柱链低矮式超长冲程抽油机的研究
Parameter analysis of long stroke pumping units of accurate counterbalance and dual - belt of b - 14 - type 14型全平衡双带长冲程抽油机参数分析
Optimum design of a long stroke variable torque pumping unit and simulation of its dynamic behaviors 扇形长冲程抽油机的优化设计与动力仿真
The machine program consists of progressive headers , bolt making units , short and long stroke part formers 其机械范围包括多工位成形机,螺栓成套机,短、长冲程零件成形机。
The combination of high gear ratio and long stroke can drain an entire air system unless the air supply system is specially designed to accommodate this type of actuator 除非气源供应系统是经过特殊配置,以满足这种类型执行机构的要求,或者高齿轮传速比和长冲程的组合可能会耗尽整个气源系统。