Short radius and long radius of lapillus was linearly correlated.
草鱼幼鱼耳石长半径与短半径之间呈线性关系;
Based on the elbow press loss theory, a short radius elbow was chosen and designed and experiments were made using it.
根据弯管压损理论选择设计了短半径弯管,并对其进行了相关试验。
Louping well 3 is a ultra-shallow extended reach horizontal test well with medium-short radius, its displacement-TVD ratio equals to 2.
楼平3井是河南油田的一口超浅层中短半径大位移水平井试验井,不但位垂比达2。
The test result proved the press loss of the long radius elbow is higher than that of the short radius elbow, which accorded with the new theory.
试验结果表明,长半径弯管的压损高于短半径弯管的压损,与最新研究理论相符;但是,使用长半径弯管时分配器的排量要大于使用短半径弯管时分配器的排量。
Based on the analysis of pump pressure, tension variation, and drilling speed, the existing problems of ultra-short radius side tracking horizontal well were presented.
通过对钻井过程中泵压、张力变化及机械钻速的分析,指出了超短半径侧钻水平井钻井技术存在的主要问题。
Both methods in this paper can predict the build-up rate of tools better and meet the requirement of middle-short radius horizontal well, which is verified in the field.
文中所述两种预测方法可较好地预测工具的造斜率,能满足中短半径水平井的需要,并得到了现场验证。
By means of the pressure loss in three kinds of bend configuration. it is found out that the short radius elbows appear to yield the lowest pressure loss in a wide range of mass over air ratio.
通过三类弯管形式压损试验,发现了短半径弯头在一个较大料气输送比范围内均产生最小压损;
Let this be the angle d theta so it moves in a short amount of time over an angle d theta dS and the arc here is dS, R and the radius is R.
这是角度dθ,它运动了一会儿,运动过角度dθ,弧度是,半径是。
Small size bent housing screw drill with high build rate must be developed to meet the requirements of sidetracking the short to medium radius horizontal well.
螺杆钻具是其中的一项关键技术,其主要目的是研制满足侧钻中短半径水平井需要的小尺寸高造斜率的弯外壳螺杆钻具。
This method could be used for frictional force analysis in short to medium radius horizontal Wells, and as a reference to field drilling practice.
该方法可适用中短半径水平井的摩阻力分析,供实际钻井作业参考。
Because of its small screening radius and short delay time, graphite is chosen as the cathode material.
在电子束产生过程中,屏蔽半径应尽可能地小,且击穿延时时间较短,故选择石墨作为阴极材料。
MANEUVERABILITY. Short turning radius, less weight on the front axle.
较小的转弯半径,前刚性轴上较轻的重量。
MANEUVERABILITY. Short turning radius, power steering.
较小的转弯半径,动力转向。
The long-normal resistivity has a deeper radius of investigation than the short-normal resistivity.
长电位电阻率测井比短电位电阻率测井具有更深的探测半径。
The relations between the radial variance and the diopter difference are given in this paper for correcting the cornea radius to rectify short—sight.
本文提供了修正角膜半径校正近视时,半径变化量和屈光度差之间的关系式;
It illustrates a ellipse's short semi-axial curved line with great cured radius, that can replace the straight line for cutting square work-pieces on the machine tool.
车方机床用曲率半径很大的椭圆短半轴曲线代替直线切削方形工件。
Based on the nonlinear FEM, a mechanical model for PDM used in medium - and short-radius horizontal well drilling is established in this paper.
应用非线性有限元法,建立了中短半径水平井螺杆钻具力学模型。
Vehicles steering in the conventional manner lacked the rapid response, short turning radius, and ease of handling.
传统的车辆转向构件反应迟钝、转弯半径大,操作不便。
Vehicles steering in the conventional manner lacked the rapid response, short turning radius, and ease of handling.
传统的车辆转向构件反应迟钝、转弯半径大,操作不便。
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