长冲程 QLS ; long-throw ; A long-stroke low red times
长冲程泵 long-stroke pump
长冲程抽油机 long stroke pumping unit ; LCYJ
长冲程蒸汽机 long-stroke steam engine
长冲程柴油机 long stroke engine ; long-stroke diesel engine
冲程长度 Stroke Length
长冲程震击器 long strke bumper sub
拉杆冲程加长器 pendulum multiplier
长冲程瓦斯推杆 Long stroke gas piston rod
超长冲程柴油机 super-long stroke diesel engine
通过调整挂钩，使权力中风，比压缩冲程长，发动机可以达到，但与奥托循环发动机的效率。
By adjusting the linkage to allow a power stroke that is longer than the compression stroke, the engine can achieve greater efficiency than with the Otto cycle engine.
双变径轮式抽油机是在继承常规游梁式抽油机优点的基础上设计而成的大载荷、长冲程、低冲次节能型抽油机。
A dual variable-diameter wheel pumping unit, which has long stroke and low pumping speed and large load capacity, is designed based on conventional beam pumping units.
主要产品有长冲程节能型抽油机和盘式刹车。
The main products are Long-stroke energy saving oil pumper and disk type brake.
应用推荐