A positive displacement variable diameter stabilizer was developed in China, and its field tests and real drilling applications in Well QHD32 6 A26 was presented.
并介绍了国内自行研制的正排量变径稳定器在QHD 32 -6 - A 2 6井的现场试验和实钻应用情况。
The analysis showed that the diameter variable wheel could let the moon detection vehicle be able to possess much better passing capability.
分析表明，可变直径车轮使月球探测车具有更好的通过性能。
Structure parameters of its variable intake system, such as diameter and length of intake manifold, switching speed of control valve switch, etc. , are optimized.
对该汽油机采用的可变进气系统的歧管直径和长度、控制阀开关的切换转速等结构参数进行了优化设计。
In the greenhouse, by conducting pot and field experiments, the diagnosis method of crop moisture content from variable differential in stem diameter of tomato was studied.
在温室条件下，盆栽和小区试验相结合，进行了用番茄株茎直径变差法诊断其水分状况的试验研究。
This paper presents a torque control model for variable tension with automatic on-line calculation of winding diameter in winding drive inverter.
提出了一种卷绕传动中利用变频器实时完成卷径自动计算的变张力转矩控制模式。
This method is ensured to calculate the tensile stress in the recoiling process under the variable coil diameter and speed conditions.
这种方法计算的卷机功率可在卷径、卷取速度变化的工况下，保证卷取过程中的张力。
At last, the authors regard that variable parameters are necessary for people to adopt in order to obtain a uniform kerf width for thin seamless steel pipe with a small diameter.
最后提出，为了获得均匀宽度的圆周切缝，对于薄壁小管径无缝钢管激光切缝，应采取变工艺参数的措施。
Description of the tree diameter growth using tree age as independent variable may thus give an inflection point of the growth curve.
树木直径的实际生长年龄小于树木年龄，用树木年龄作为自变量来描述直径生长会导致生长曲线出现拐点。
Because the diameter of the steel wire forming the spring by winding is changed along the axial direction of the steel wire, the spring can obtain a variable stiffness characteristic curve.
由于卷绕构成弹簧的钢丝的直径沿钢丝的轴向改变，因此弹簧可以获得变刚度的特性曲线。
It can calculate the torsion rigidity of the variable section step-shaft simply using the general formula for calculating the same diameter shaft which can be found directly in material mechanics.
从而可利用材料力学中求解等直径圆轴扭转刚度的一般公式简便地求出变截面阶梯轴的扭转刚度。
In this paper, the calculation of the moments and deflections for the columns with uniform diameter and thickness but subjected to variable loads was discussed.
本文将对等壁厚、等经受变载荷塔内弯矩和挠度进行探讨。
A dual variable-diameter wheel pumping unit, which has long stroke and low pumping speed and large load capacity, is designed based on conventional beam pumping units.
双变径轮式抽油机是在继承常规游梁式抽油机优点的基础上设计而成的大载荷、长冲程、低冲次节能型抽油机。
An inner diameter vane shroud of a variable vane assembly accommodates a synchronization mechanism for coordinating rotation of an array of variable vanes.
一种可变叶片组件，它的内径叶片围带容纳一个用来协调可变叶片阵列的转动的同步机构。
Rack and pinion variable van synchronizing mechanism for inner diameter vane shroud.
用于内径叶片围带的齿条和小齿轮可变叶片同步机构。
Transmission electron microscopy (TEM) points out variable nanometric diameter grain and some small agglomerates.
透射电镜（TEM）发现多种直径不同的纳米尺度颗粒和聚集。
This paper discusses a method of continuous variable aperture(CVAFF)to measure the mode-field diameter(MFD)in single-mode fibers.
本文讨论一种用于单模光纤模场测量的连续变孔径方法。
In particular it optimizes the parameters of the extension spring that is a crucial part in such a flexible infinitely variable-diameter system.
特别是对超声检测柔性无级变径系统的重要部件拉伸弹簧进行了参数优化，对超声变径检测装置的设计具有重要指导意义。
Through the mechanical analysis of biomass materials, we designed a variable-diameter conical head with the open molding and verified our results using small wood shavings, sawdust and so on.
通过对生物质原料的力学分析，设计了开式成型的变径成型锥头。
The effects of physical dimension(inner diameter and length-to-diameter ratio) on the combustion performance of a tubular variable-burning-rate gun propellant were investigated by closed bomb test.
采用药柱密度测量技术和密闭爆发器试验，分析了试样的损伤程度，并对损伤装药的燃烧性能进行了研究。
The result showed that the stress of framework of variable-diameter wheel pumping unit was largest, stress difference between front leg and back leg of framework was also largest;
结果表明，变径轮式抽油机支架应力最大，前、后肢应力差较大；
The result showed that the stress of framework of variable-diameter wheel pumping unit was largest, stress difference between front leg and back leg of framework was also largest;
结果表明，变径轮式抽油机支架应力最大，前、后肢应力差较大；
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