介绍顶管掘进机截割传动装置所采用的行星齿轮减速器，论述行星齿轮减速器的结构特点。
This paper introduces the epicyclic reduction arrangement applied in cutting drive mechanism in pipe jacking, analyses the construction and characteristics of epicyclic reduction arrangement.
在对数控火焰切管机床的加工原理和割炬路径的运动学分析基础上，研制了一种功能强大的火焰切管数控机床。
A powerful flame nc pipe cutting machine tool was developed based on the analysis of the principle and the torch movement for the flame nc pipe cutting machine tool.
针对割缝衬管完井方法，进行了完井参数、单根割缝衬管长度、完井管柱结构的优化设计。
For the well completion method by slotted liner, well completion parameters, single slotted liner length and pipe string structure in well completion are optimized.
目的探求粗玻管的截割方法和破底大(中)试管在中学化学实验和大学基础化学实验中的利用。
Aim to find ways of cutting big glass tubes and new USES of big bottom-broken test tubes in high school chemical experiment and college basic chemical experiment.
利用所研制的水平井软件HWCS对割缝衬管完井的产能进行了预测。
The software of HWCS developed by ourselves, has been used to predict the productivity of slotted liner well completion.
提出了最大Z坐标原则求管-管、板相贯线坡口切割割炬轨迹的方法。
The principle of Z-max was also proposed for the intersecting curve of pipe-pipe-plate.
对管-管相贯、K形接头相贯的切割实例进行了仿真分析，研究了割炬轨迹和相关参数的关系。
The real cutting examples about intersection of pipe-pipe and K type are simulated and analyzed, and the relationship between torch track and related parameters is studied.
精密的机械加工使管割器快速平稳的工作。
Precision machining provides the quickest and smoothest action.
材料选择和割缝结构优化是可膨胀割缝管的关键技术。
By testing on different material and slotting structure, according to expandable properties, an appropriate tubular material and slotting structure was optimized.
对割缝衬管在防砂井中受外挤力作用进行了分析，计算了井底压力（包括流体流经砾石层和割缝衬管的压降） ，建立了衬管割缝参数与割缝条幅弯曲强度及刚度之间的关系式。
The pressure of slotted pipes in a sandy well was analyzed. The bottom hole pressure was computed. A model for computing the bending strength and stiffness of a slotted pipe was proposed.
在裸眼完井产能评价模型的基础上进一步推导出火山岩气藏射孔完井和割缝衬管完井产能评价模型。
Through the open hole completion productivity evaluation model, respectively derive perforated completion and slotted completion productivity evaluation models.
膨胀式防砂筛管由膨胀式割缝基管、相互重叠的金属滤网和膨胀式割缝保护套构成。
ESS consists of expandable slotted steel tube, overlapped metal screen and expandable slotted shroud.
膨胀式防砂筛管由膨胀式割缝基管、相互重叠的金属滤网和膨胀式割缝保护套构成。
ESS consists of expandable slotted steel tube, overlapped metal screen and expandable slotted shroud.
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