建立了偏心度在井眼内按线性及正弦规律变化的偏心环空流问题理论模型。
The model established in this paper puts forward two situations, a linearly and a sinusoidally skewed annulus.
并对它所提的“图像清晰度”、“内外偏心度”以及“虹膜可见度”三个指标进行了分析。
And, the indexes of image clearity, eccentricity of inner and external boundaries and the iris visibility are discussed.
本文介绍偏心度为井深函数的实际环空中压降计算的理论模型和便于现场使用的简化计算方法。
This paper presents a theoretical model for realistic annular pressure loss calculation in which the eccentricity is a function of the well depth and a simplified method for field calculations.
实验结果表明：当基频光辐射偏心度增大到0.75时，倍频晶体的最高温升下降了21.1%。
The result shows that when the radiation eccentricity increases to 0.75, the temperature rise of nonlinear crystal can be reduced by 21.1%.
本文论述了射频同轴电缆偏心对电气参数和传输质量的影响，提出了电缆制造中对偏心度的指标要求。
The effects of the eccentricity of radio frequency coaxial cable on the transmission parameters and quality are discussed. The requirements on eccentricity in cable manufacturing are suggested.
例如驱动桥主减速器油封的装配技术要求：输入法兰中心线对油封座孔中心线的偏心度小得超过0.1mm。
For example, the main driving axle reducer seal assembly technical requirements: input flange oil seal centerline hole of the center line of the small eccentricity of more than 0.1mm.
提出了关于变偏心度环空中计算非牛顿流体在层流、过渡流及紊流状态下压降、流速的方法；给出了流场特性分析及数值模拟结果。
The method is presented to simulate pressure losses and flow velocities in skewed narrow annular geometries for laminar, transition and turbulent non-Newtonian flow.
本文提出了“图像清晰度”、“内外偏心度”和“虹膜可见度”三个衡量图像质量的指标，实现了对虹膜图像进行实时质量评价的要求。
Three performance metrics, image Definition, Inside and Outside Eccentricity, and Iris Visibility are introduced, which makes possible a real-time evaluation to the acquired images.
铣削加工表面粗糙度的形成与铣刀和工件振动、主轴偏心、刀具磨损、刀具变形等物理和几何因素有关。
The surface roughness in mill machining relates to quiver of work piece, principal axis's eccentricity, cutter abrasion, cutter distortion and other physical or geometry factors.
文章分析了超声振动车削时工件的装夹偏心和车床主轴的旋转精度对加工表面粗糙度的影响。
This paper analyses the influence of the eccentric clamp of the workpiece and the rotative accuracy of the lathe spindle on the ultrasonic lathe.
分析了导轨表面粗糙度、导轮偏心和扁疤等激励对电梯高频振动的影响。
The influences of excitation mechanisms such as rail surface roughness, roller eccentricity and roller flat on the high frequency vibration were investigated.
对混凝土轴心受压柱和偏心受压柱进行了可靠度分析。
The reliability analysis of concrete columns under axial and eccentric compression was performed.
研究结果表明：静子和转子壁面粗糙度对大间隙环流中偏心转子动特性系数有较大影响。
The effects of stator and rotor wall roughness on the dynamic coefficients of the eccentric rotor in large gap annular flow have been investigated with numerical method.
再利用球面偏心测量原理检测被测透镜球面一面的偏心量，即可以求得被测非球面透镜的光轴共轴度。
Then the eccentricity of the sphere side of the tested lens is measured according to the principle of the spherical eccentric measurement.
提出了用于改善抛光平行度的偏心分布载荷技术。
The technique of eccentrically distributed loading for the improvement of parallelism in polishing is proposed.
介绍了下卧式径向偏心仪的结构原理及其灵敏度的调整方法，说明了径向偏心位置的测定方法及误差分析。
Describes the principle of the horizontal radial off-center instrument and adjustment method of its sensitivity. Explains measurement method and error analysis.
通过估算顶点偏心在传统定心仪上的测量误差，可以发现传统定心仪很难达到控制目的，而干涉测量方法却能得到较高的准确度。
Error budget estimation about conventional centering method shows that it cannot be used to control the vertex off-centering error, so interferometric method was suggested.
对偏心轮式结构给出两种实现一分度的具体型式，并根据共轭齿廓形成原理推导了凸轮廓线方程。
The equations of the cam's picth curve are derived on the basis of forming principle of conjugate profile.
对偏心轮式结构给出两种实现一分度的具体型式，并根据共轭齿廓形成原理推导了凸轮廓线方程。
The equations of the cam's picth curve are derived on the basis of forming principle of conjugate profile.
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