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inner diameter
相关语句
  内径
    The modified logging tool with 3arm caliper responds to changes of hole inner diameter by serial potentiometers.
    经过改进的三臂井径测井仪器用3条臂的电位器串联来响应井眼内径的变化。
短句来源
    Base on the analysis and research on coal conveying mechanism of the screw drilling rods,the coal conveying rate was selected as the target of the optimized design. According to the inner diameter of the blade for drilling rods,the working rotary speed of the drilling rods,the screwing up angle of the blade and the stroke as the variation of the design and in consideration of the influences of the lump coal rate,float coal quantity,unit energy consumption and other factors,a mathematics model was established.
    在对螺旋钻杆的输煤机理进行分析研究的基础上,选择螺旋钻杆输煤生产率作为优化设计的目标,以钻杆叶片内径、钻杆工作转速、叶片螺旋升角和导程为设计变量,同时考虑了块煤率、浮煤量和单位能耗等因素的影响,建立了数学模型。
短句来源
  内径
    The modified logging tool with 3arm caliper responds to changes of hole inner diameter by serial potentiometers.
    经过改进的三臂井径测井仪器用3条臂的电位器串联来响应井眼内径的变化。
短句来源
    Base on the analysis and research on coal conveying mechanism of the screw drilling rods,the coal conveying rate was selected as the target of the optimized design. According to the inner diameter of the blade for drilling rods,the working rotary speed of the drilling rods,the screwing up angle of the blade and the stroke as the variation of the design and in consideration of the influences of the lump coal rate,float coal quantity,unit energy consumption and other factors,a mathematics model was established.
    在对螺旋钻杆的输煤机理进行分析研究的基础上,选择螺旋钻杆输煤生产率作为优化设计的目标,以钻杆叶片内径、钻杆工作转速、叶片螺旋升角和导程为设计变量,同时考虑了块煤率、浮煤量和单位能耗等因素的影响,建立了数学模型。
短句来源
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  inner diameter
A better separation electropherogram was obtained when a 20 mM borate buffer at pH 8.5 and a fused silica capillary with an inner diameter of 100 μm with a total length of 47 (40 cm to the detector window) were used.
      
Capillary with inner diameter of 100 μm increased the intensity of determination; therefore, color dyes were identified in the visible range and were able to provide more information for comparing types of roller pen inks.
      
The output characteristics of a source with a discharge region 100 mm long and an inner diameter of the discharge tube of 5 mm were optimized on Xe(Kr, Ar)/Cl2, Ar/Kr/Cl2?, Ar/Xe/Cl2, and Kr/Xe/Cl2 mixtures.
      
The hole diameter ranged from 10 to 90% of the inner diameter of the hollow cathode.
      
A cap with a hole of 4 mm in diameter mounted on the top of a hollow cathode with an inner diameter of 20 mm allowed a pressure difference of three orders of magnitude to be attained.
      
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The optional borehole of small diameter in core drilling to extract rock core hydraulically is a new technique developed in recent years. It is characterized by lessening labour intensity, greater core run and longer life length of drill bit, but core jam often Jake place while drilling. The writer has made an investigation into core jams based on simulated tests. He points out that the circle gap between the diameter ofrock core and the inner diameter of drill rod could be a key point giving rise to core...

The optional borehole of small diameter in core drilling to extract rock core hydraulically is a new technique developed in recent years. It is characterized by lessening labour intensity, greater core run and longer life length of drill bit, but core jam often Jake place while drilling. The writer has made an investigation into core jams based on simulated tests. He points out that the circle gap between the diameter ofrock core and the inner diameter of drill rod could be a key point giving rise to core jam. At the same time this paper indicates that the core jam can be reduced obviously by reasonable circle gap and of fers some suggestions to keep core jam out.

小口径水力取芯钻探是近年来推出的一项新技术,具有劳动强度低、岩芯采取率高和钻头寿命长的特点。但在钻探过程中,堵芯问题却时有发生。本文阐述了在模拟试验的基础上对堵芯问题进行的研究工作,指出钻杆内壁与岩芯之间的环状间隙是产生堵芯的主要原因,并且指出合理的环状间隙能够明显地减少堵芯次数。最后还提出了防止堵芯的一些建议。

A new type of electroplated diamond bits is developed and produced by adopting.composite electroplating technology. In the process, electroplating Ni - Co - diamond powder composite coatings are produced by adding diamond powder as dispersion phase (concentration 10g/1), into the electroplating solution. These Coatings improve the wear resistance oi the matrix. The bits are available in two diamond grades and three steps of grain sizes to extend the range of use and increase the self-sharpness. The entire diamond...

A new type of electroplated diamond bits is developed and produced by adopting.composite electroplating technology. In the process, electroplating Ni - Co - diamond powder composite coatings are produced by adding diamond powder as dispersion phase (concentration 10g/1), into the electroplating solution. These Coatings improve the wear resistance oi the matrix. The bits are available in two diamond grades and three steps of grain sizes to extend the range of use and increase the self-sharpness. The entire diamond matrix is worn away almost in the same step by adjusting the proportion of coating thickness among inner diameter, outer diameter and height of matrix . The bits are tested and used at a hydropower station . The results show that such bits are suitable for drilling in the broken hard rock and very abrasive formation.

本文采用复合电镀新工艺来研制和生产金刚石钻头。在研制过程中,往普通钻头镀液中加入10g/l金刚石微粉,得到镍—钻—金刚石微粉复合镀层,提高了钻头胎体的耐磨性。将两种品级、三种粒度金刚石按一定比例混合使用,扩大了钻头的适用范围,提高了钻头的自锐性。通过改变内、外径和底唇面镀层厚度的比例,做到镀层基本同步消耗完。一年多来的工地现场使用结果证明,这种钻头适用于坚硬、强研磨性地层的钻进,具有时效快、寿命长的优点。

The author considers the reason why the wear on bit inner edge is always larger than the wear on bit outer edge is that the load on bit inner edge is larger than the load on its outer edge.A relation of number and width of water grooves and the difference between inner diameter and outer diameter of the bit to the difference in load between inner edge and outer edge of the bit has been presented in this paper.Reasonable number and width of water grooves of a bit are recommended for various...

The author considers the reason why the wear on bit inner edge is always larger than the wear on bit outer edge is that the load on bit inner edge is larger than the load on its outer edge.A relation of number and width of water grooves and the difference between inner diameter and outer diameter of the bit to the difference in load between inner edge and outer edge of the bit has been presented in this paper.Reasonable number and width of water grooves of a bit are recommended for various bits in order to decrease the difference in wear between bit inner edge and its outer edge.

钻头内缘磨损经常大于外缘的原因,是由于钻头内缘负担大于外缘负担造成的.作者计算出水口宽度、钻头内外径差对钻头胎块内外缘负担差的影响,并对于各种类型钻头,推荐了合理的水口数及水口宽度,以减少钻头内外缘的磨损差.

 
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