long stroke

基本解释

Chain type long stroke pumping unit is mainly used in mid and anaphase oilfield.
链式长冲程抽油机主要是为开采中、期油田而设计的。
Equipped with MON type main drive system, the chain pumping unit is characterized by large load, long stroke and low pumping speed.
MON式主传动系统力系设计合理，运行平稳，可靠性高，从而使新型链条抽油机具有大载荷、长冲程和低冲次的特点。
This paper presents 15 typical long stroke non-beam pumping units at home and abroad, briefly introducing their structural features, operation principles and economic benefits.
本文集锦了国内外15种典型长冲程无游梁抽油机，扼要地介绍了它们的结构特点与工作原理和经济效益。

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