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- This unit consists ofelectric powerunit which changes from triphase into single-phase, heating cable, hollow rod and accessories. 这套装置由三相变单相供电装置、加热电缆、空心抽油杆和附件构成。
- Adding hot waste water in hollow rod downhole can give full play to surfactant,then the oil can be lifted to surface after heating,deconcentrating and wetting. 由空心抽油杆向井下掺入热污水,充分发挥原油脱出水中所含的表面活性剂作用,对稠油加温、稀释、湿润,然后由抽油泵举升到地面。
- In accordance with downhole tubing sticking by sand burial accident, this paper proposes hollow rod sand washing after analysis of downhole string structure and hydraulic calculation of sand grain. 针对处理井下油管砂埋遇卡事故作业中出现的技术问题,在分析井下管柱结构及砂粒的水力计算的基础上,提出了空心抽油杆冲砂工艺处理措施。
- Newly developed electric heating hollow rod drive screw pump system adopts hollow sucker rod to drive the screw pump.It has twice the antitorque capacity of the hollow rod with the same cross section. 新研制的电加热空心抽油杆驱动螺杆泵装置采用空心杆驱动螺杆泵，抗扭承载能力比相同横截面积的实心杆增大近1倍。
- Three deformed and two rotational structures are constructed to the formed PBG of hollow rods in the triangular lattice. 在中空柱子于三角晶格的计算，则是设计三种变形结构与两种旋转结构去探讨旋转以及结构对称性于光子能隙的影响。
- Application of electric heating by hollow rod in Baolige Oilfield 空心杆电加热技术在宝力格油田的应用
- Founded in 1990, are engaged in brass rods, bronze rods, hollow rods and copper alloy, zinc, aluminum, copper ingots, zinc ingots professional manufacturers. 创建于1990年，是从事黄铜棒、锡青铜棒、空心棒及铜合金、锌、铝合金、铜锭、锌锭的专业生产厂家。
- Application of hollow rod sand washing in sand burial accident 空心抽油杆冲砂在处理砂埋事故中的应用
- Add hot waste water in hollow rod to produce heavy oil 空心抽油杆掺热污水稠油开采工艺技术
- Test and application of water blended visbreaking with hollow rod 稠油空心杆掺水降粘技术试验及应用
- Models for predicting operation of hollow rod pumping system 液力反馈型空心杆采油工艺系统工况预测模型分析
- I bought a new fishing rod last Sunday. 上星期日我新买了一个鱼竿。
- Our team beat them hollow by four clear goals. 我们队以净胜4分彻底击败了他们。
- The bell, when struck, gave forth a hollow sound. 敲这钟时发出一种闷哑的声音。
- 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。
- His protests on human rights sound hollow. 他就人权问题提出的抗议听来很空洞。
- Spare the rod and spoil the child. 不打不成器。
- A round hollow in a hillside; a cirque. 盆地山区中的圆的洼地
- She held the small bird in the hollow of her hand. 她把那小鸟握在掌心里。
