Taking the rod string as the object of study, a method of computing pumping stroke and speed of walking beam pumping units for slant straight wells is also presented.
以抽油杆柱为研究对象，论述了斜直井游梁式抽油机冲程和冲次的计算方法。
On the basis of an analysis of the stroke composition and the mutual relationship between strokes, a string code is used to describe the structural features of Chinese characters.
在对汉字的笔画构成以及笔画之间的相互关系进行分析的基础上，采用链码来描述汉字的结构特点。
During oil recovery by rod pump, owing to the elastic stretching and shrinking of the tubing string, the stroke loss of the subsurface pump reaches 10%.
在有杆泵抽油过程中，因油管弹性伸缩，抽油泵冲程损失达10%以上。
It can move slightly during a stroke because of the pressure against the finger from the string, but we will not try to control this joint at this stage of playing the guitar.
在击弦时它可以有轻微的运动，因为弦对手指的压力，但是我们不要尽力来控制这个关节。
Innovatory integrated molding design to improve frame's performance, string tension and stroke effects.
革新的整体塑型设计，提升拍框性能、网线张力，与触击效果。
When Wells run at one or some of the above states, and the practical down stroke axial load of the plunger is greater than the critical axial load, the wear of rod string and tubing will take place.
当抽油杆柱在上述一个或几个条件共同作用下达到偏磨临界条件时。杆管将产生偏磨。
Crack size, hammer stroke frequency and rotary speed influence the drilling string fatigue life involve, in which the crack size and stroke frequency were two major factors.
影响钻柱疲劳寿命的因素包括钻柱裂纹尺寸、空气锤冲击频率、转盘转速等，而空气锤冲击频率与裂纹尺寸是影响钻柱疲劳寿命的两大主要因素。
Crack size, hammer stroke frequency and rotary speed influence the drilling string fatigue life involve, in which the crack size and stroke frequency were two major factors.
影响钻柱疲劳寿命的因素包括钻柱裂纹尺寸、空气锤冲击频率、转盘转速等，而空气锤冲击频率与裂纹尺寸是影响钻柱疲劳寿命的两大主要因素。
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