1) expansion by compression
相对压粗率
2) relative roughness
相对粗糙度
1.
In the paper,it is studied relative roughness of roughened flexible rubbers of model in flume.
确定了不同相对粗糙度下,加糙体数量、尺寸、布置形式对加糙后明槽糙率的影响,以及合理的糙体布置形式。
2.
When the relative roughness were between the arrange of 0.
在延续海漫加糙试验研究的基础上,采用弹性较好的环状橡胶圈模拟废旧轮胎,在实验室人工水槽中做进一步海漫柔性加糙试验研究。
3.
The range of reduce is related to the relative roughness of riverbed: The greater the roughness, the greater the range of flow speed decrease is; whereas the smaller the roughness, the smaller the range of the flow speed decrease is.
在截流工程中 ,加糙可以使河床底流速降低 ,其降低幅度与河床相对粗糙度有关 ,河床相对粗糙度越大 ,河床底流速降低值越大 ,反之 ,则降低值减小 ;底流速的降低 ,可以有效地减小舌状堆积体长度 ,减少抛投料和缩短截流时间 ,从而降低截流难
3) relative efficiency
相对效率
1.
The relative efficiency of the least square estimation in singular linear model;
奇异线性模型最小二乘估计的相对效率
2.
Analyzing isotopic abundance by method of relative efficiency;
相对效率法同位素丰度分析的研究
3.
The relative efficiency of the least square estimation in singular linear model;
奇异线性模型中LSE的一种新的相对效率
4) relative curvature
相对曲率
1.
It is also analyzed that the parameters of initial pressure angle and its increment may influence the relative curvature at the meshing point to become zero.
介绍了微段渐开线齿条齿廓形成原理及形成过程,建立了微段渐开线齿条齿廓的直角坐标方程,证明了影响齿廓弯曲程度的参数是基圆半径,影响啮合点相对曲率为零的参数是初始压力角和压力角增量,提出了需对这些参数进行优化设计并给出了优化计算结果。
2.
If the relative curvature of a certain curve on the first control point and the direction angle of the first port’s tangent vector is given,here can get the whole curve by using the character of the port of quadratic uniform B-spline curve.
提出了一种二次均匀B样条插值曲线的构造方法,首先给定某一段曲线首点的相对曲率和该段曲线的首端切矢量的方向角,利用二次均匀B样条曲线的端点性质,求出其余各段曲线控制顶点,来生成整条插值曲线。
3.
In this article the authors first put forward a few simpler and easier methods for calculation the evolute equation, the formula of relative curvature; then, discuss the methods for calculating the equations of the tangent line, the normal plane, the osculating plane, the binormal, and the rectifying plane; and finally popu.
文中给出了有关渐缩线方程 ,相对曲率计算公式的更简便的推导 ;讨论了如何才能很快地做出切线 ,法面 ,密切平面 ,副法线和从切平面方程的方法 ;还对有的习题进行了推广 。
5) relative efficiencies
相对效率
1.
The relative efficiencies of a class of linear estimator with respect to generalized least square estimator in linear regression model;
回归系数一类线性估计与广义最小二乘估计的相对效率
2.
For the linear model with aggregated data,In this paper,we proposed definition of the Generalized Ridge Estimators and the Improved Generalized Ridge Estimators of the parameters and two kinds of relative efficiencies of the estimators,in rate of popularize Eucliden standard a sense and in rate of weighted Euclidean standard a sense.
对于聚集数据的线性模型,给出了参数的广义岭估计及改进的广义岭估计的定义,并提出了广义岭估计及改进的广义岭估计在推广的欧氏模之比意义下及加权欧氏模之比意义下的二种相对效率。
3.
The upper bound of the two kinds of relative efficiencies are obtained.
本文研究聚集数据的线性模型参数的有偏估计问题,在欧氏模之比意义下给出了参数的有偏估计的一个相对效率,并在加权欧氏模之比意义下给出了参数的有偏估计的一个相对效率,并得到了这两种相对效率的上界。
6) relative heart rate
相对心率
1.
Discusses the change of heart rate when one exercise under the high work load, puts forward a method which applies the relative heart rate to judge limited physical work load, and concludes a formula about the maximum time which human body can keep when one work under the high work load.
详细分析了人体在高强度运动中的心率变化，提出了用相对心率为指标来衡量体力极限负荷的方法，并推导出人体在高强度运动下能维持的最大工作时间的数学表达式。
补充资料：粗率
1.粗疏直率。 2.粗劣简陋。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条