One of the key problems of designing the control valve of modulation rotary steering drilling tool is the design of high pressure hole of upside valve.
设计调制式旋转导向钻井工具控制阀的关键问题之一是上盘阀高压孔的设计。
According to the features of the hole pouring pile construction technology, this paper analyzes the key points of quality control of pore-forming and pile-forming in the construction.
根据钻孔灌注桩施工工艺特点，详细分析和论述了施工中成孔和成桩质量控制要点。
It is one of the key techniques of improving timber quality of poplar to effectively control the nodal scars of stem and decrease the Numbers of insect hole.
有效地控制杨木节痕和减少虫眼是提高杨木质量的关键技术之一。
Information transmission between ground and down hole is the of key the closed-loop control system of wellbore trajectory.
地面与井下的信息传输是井眼轨道自动闭环控制的核心。
The drilling technique of diagonal water-hole is the key step in digital control machining of a lip mould.
唇模数控加工工艺的重点和难点是斜水孔的钻削工艺。
Active compliance control of robot is becoming a key technology in the field of intelligent manufacturing, peg-in-hole assembly of robot is also being used widely in the corporations' production.
机器人主动柔顺控制是新兴智能制造中的一项关键技术，轴孔装配在企业生产中有着极其广泛的应用。
The drainage hole is an important seepage control measure, so it is one of the key problems to simulate the effect of the drainage hole in the seepage analysis.
排水孔是重要的渗控措施，如何准确模拟排水孔的作用是渗流分析中的关键问题之一。
The drainage hole is an important seepage control measure, so it is one of the key problems to simulate the effect of the drainage hole in the seepage analysis.
排水孔是重要的渗控措施，如何准确模拟排水孔的作用是渗流分析中的关键问题之一。
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