您要查找的是不是：
- The new assembly can make the joint of the polished rod pass through, therefore can meet the need of new oil production technology. 这种密封盒可以使比光杆杆体直径大得多的光杆接头通过，能满足新的采油工艺需要。
- The polished rod fishing tool is a new type of fishing tool and is mainly used to fish long slim, not heavy rod type fishes. 光杆落物打捞器是一种新型打捞工具,主要用于打捞重量较轻的细长光杆式井下落物(如测斜仪器、测井仪器等),详细介绍了该工具的结构、工作原理及使用注意事项。
- The unit horse head polished rod close to beam suspension gravity working point .Therefore, while pump holddown beam bending moment so small that will not cause beam broken. 本机驴头悬点距游梁吊重力作用点距离很短，所以，卡泵时游梁弯矩小，不足以造成折梁。
- Kinematic parameters of different types of pumping units, including the displacement, velocity and acceleration of the polished rod and the torque factor can be calculated easily and accurately by using this method. 为此，根据几何关系和运动特点，建立了运动学模型，提出了异形游梁式抽油机运动参数的求解方法。
- According to the static and running parameters of rod pumping wells, the methods of simulating dynamometer cards of the polished rod and pump on the basis of wave equation were setup. 摘要根据油井的静态与动态参数，建立了以波动方程为基础的抽油机悬点与泵示功图的计算机仿真模型。
- Effects of Polished Rod Clamps on Polished Rod Fatigue Life 光杆卡对光杆疲劳寿命的影响
- Development and application of centralizing polished rod stuffing box 随动对中光杆密封器的研制与应用
- Diagnosis of the Production System from the Load Borne by the Polished Rod 螺杆泵井光杆受力法工况诊断技术
- Give the table a good rub with this polish. 用这上光剂把桌子好好擦一擦。
- The wavelet transform applied in polished rod acceleration measurement 抽油机悬点加速度测量中的小波变换方法
- Keywords Pumping well;Wellhead equipment;Polished rod;Seal element;Aligner; 抽油井;井口装置;光杆;密封件;对正装置;
- I bought a new fishing rod last Sunday. 上星期日我新买了一个鱼竿。
- He had polished the table-top until it gleamed. 他把桌面擦得很亮。
- He polished off the pie and the fruit. 他很快吃完了馅饼和水果。
- His shoes were always well polished. 他的鞋总是擦得乾乾净净。
- His speech was always polished to a nail. 他的发言总是要经过仔细润色的。
- Keywords wellhead;polished rod stuffing box;structure design;field application; 井口装置;光杆密封器;结构设计;现场应用;
- Don't smear the lens; I've just polished it. 别把镜头弄脏了，我刚刚擦过。
- The movable target on a leveling rod. 视准器水准尺上可移动的目标
- The rod bent as he pulled in the fish. 当他把鱼拉上来时，鱼竿都弯了。
