查询词典 radius

He showed by using geometric construction and the law of refraction (also known as Descartes' law) that the angular radius of a rainbow is 42 degrees i.e.

他使用几何结构和折射定律显示了一次彩虹的角半径（也就是彩虹边缘的虹膜与通过彩虹中心的阳光的内角）是42度。

This paper discusses the least squares estimator circledetection method which is based on statistical theory. It gets the position through edge tracing and uses the edge point to estimate the center and radius of circle.

本文采用基于统计原理的最小二乘圆检测法，以边缘跟踪确定圆边缘点位置，以最小二乘法估计圆心和半径，精度可达亚像素级。

Large-radius hoisting jib suspended by double rigid tie rods, legerity structure.

7，吊臂采用刚性双拉杆支承，结构轻巧。

The path density of relative movement is derivative of path arc length s to lapping tool radius R i.e.

相对运动轨迹密度就是相对运动轨迹弧长 s 对磨具半径 R 的导数，即 ds/dR 。

The design of the 3-dimensional trajectory in horizontal wells is an optimal control system where the state variables are azimuth, inclination and the control variables are radius, tool-face angle and length of curve.

水平井三维轨道设计是以方位角、井斜角为状态变量，以曲线半径、装置角、曲线段长为控制变量，以入靶精度等为性能指标的非线性多阶段最优控制系统。

Firstly,to abtain the parameters of coupling system,such as the focal length and the position of the lens,computing the Gaussian lens formula,then establishing the rectangular coordinate system and constructing equation and tracing the marginal ray to compute the parameter of the radius of the image beam waist.

首先使用高斯光束的透镜变换公式计算透镜的焦距及放置位置等耦合系统的参数，然后建立直角坐标系并利用耦合系统的参数构建方程，对边缘光线追迹，计算出像方束腰半径值。

The Moon's actual radius varies as a function of position angle and libration because of the irregularity in the limb profile.

月球实际半径根据其位置角度函数和缓慢摆动而变化，由于其边缘轮廓的不确定性。

Analyzing side force coefficient threshold and supreme super elevation for scenic area road design aiming at the differences between scenic area road and general road at the aspects of operating speed and traffic composition,it can calculate the reasonable value of lowest radius of limit circle curve for scenic area road design.

针对风景区道路与一般公路在行车速度、交通组成等方面的区别，分析适用于风景区道路设计的横向力系数阈值、最大超高的取值，可推算出风景区道路设计极限平曲线最小半径的合理取值。

To be specific,by means of changing inside dimension of concave,enlarging working volume of crushing cavity,shortening length of parallel zone of crushing cavity ,and limiting engage angle and radius of curv.

通过轧臼壁内侧尺寸的变化，扩大破碎腔的工作容积、缩短平行区长度、限定曲面啮角和曲面半径等，从而提高了破碎机的破碎效率，延长了衬板的使用寿命，改善了产品的粒度分布。

According to the radius of doping metal ions and lattice parameter of doping samples, it was confirmed that doping metal ions replaced the Mn〓 of spinel LiMn〓O〓.

根据掺杂阳离子的半径和掺杂对尖晶石LiMn〓O〓晶格常数的影响规律确定了掺杂阳离子是进入到原来Mn〓占据的位置。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。