这些系数构成的向量和直线平行。
And, these coefficients here correspond to a vector parallel to the line.
看到了吧，系数变为0了，当直线垂直于法向量的时候。
So, see, this coefficient becomes zero exactly when the line is perpendicular to the normal vector.
特殊情况下，如果最后t的系数恰好是0的话，实际上这是会发生的，当直线平行于或处于平面上。
And, the special case is if this coefficient of t turns out to be zero in the end, and that's actually going to happen, exactly when the line is either parallel or in the plane.
在高速直线电机设计中引入一个新的纵向边端效应系数表达式。
A new expression of longitudinal end effect factor is introduced to the design of high speed linear induction motor.
探讨在利用对应直线进行摄像机外部参数校正的过程中，如何快速简便地确定齐次方程组系数矩阵秩的问题。
In camera calibration with line correspondences, it is important to determine the rank of the coefficient matrix of the equation system in a quick and efficient way.
利用标定物直线边缘的图像，并运用优化的方法来计算成像系统的畸变系数和主点位置。
According to image of linear edges in calibration object, the distortion coefficient and position of principal point of imaging system can be calculated by optimization method.
SBC直线导轨的摩擦系数小，具备良好的重复性。
SBC linear guides have low coefficient of friction and excellent repeatability.
注铁后，叶子全铁含量与有效铁含量之间呈极显著的直线正相关，相关系数为0.9842。
There existed a significant positive linear correlation between total Fe and active Fe in leaves after injection of iron fertilizer, the coefficient of correlation being 0.9842.
本文对均匀直线阵列天线在相控扫描过程中的主瓣宽度和方向性系数进行了估算。
In this paper, the main valve width and directive gain for uniform linear array of antennas in phased scanning are estimated.
我国的曲线梁桥汽车荷载冲击系数的取值目前仍普遍采用直线梁桥的研究成果，对其合理性缺少足够的研究。
The impact factor assessment method of curved bridge under moving vehicles mostly adopts the usages of straight beam Bridges, but not enough argumentations can demonstrate the reasonability.
在直线加速器加速管的设计中，腔间耦合系数是一个关键参量，它的误差是影响场分布误差的主要因素。
In the design of the linear accelerating structure, the coupling factor between cavities is a crucial parameter. The error of coupling factor accounts for the electric or magnetic field error mainly.
综合研究了几种可以用于确定地层系数、表皮因子和原始地层压力的段塞流直线分析方法。
Several beeline analysis methods for determining formation flow capacity, skin factor and initial reservoir pressure from slug-test data are reviewed.
本文利用实验数据建立一元线性回归方程；回归直线，并用方差分析法和相关系数法检验方程的有效性。
This paper use experimental data to set up linear regression equation with unitary and regression straight line, to use variance analysis and related coefficient to test validity of equation.
本文还提出一种反映回归直线拟合优度的新的相关系数。
A new correlation coefficient that indicates goodness of-fit for regression line will be introduced yet in this paper. The illustrative examples are presented.
耐热性优，电阻温度系数小，呈直线变化。
Super heat dissipation, small linear temperature coefficient.
单边直线感应电机运行中因次级板产生涡流而存在第二类纵向边缘效应，造成气隙有效磁通和牵引力系数降低。
The LIM has the second longitudinal end effect caused by eddy currents in secondary plate in its operation, which reduces its available magnetic flux of air gap and pull coefficient.
由新引进的变量ad和BD之间的直线关系，求出了井筒存储系数C值。同时，给出了井筒污染系数S值。
By the linear relationship between newly introduced variable AD and BD, wellbore storage coefficient (c) has been reached, meanwhile, wellbore 's damage coefficient (s) has been given.
阀门在全开时，通道平滑为直线，流阻系数极小，无压力损失，可通毛球清扫管线。
When fully opened, the valve's channel is smooth and linear, with an extremely small flow resisting coefficient and no pressure loss, and the pipeline can be cleaned with hair-ball through it.
阀门在全开时，通道平滑为直线，流阻系数极小，无压力损失，可通毛球清扫管线。
When fully opened, the valve's channel is smooth and linear, with an extremely small flow resisting coefficient and no pressure loss, and the pipeline can be cleaned with hair-ball through it.
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