positive curvature

Illustrating ellipse and sinusoid curves,the coordinate conversion and programming in the process of using macro command were stated.

探讨了常见非圆弧曲线的加工方法,并以椭圆及正弦曲线为例,叙述了在使用宏指令加工过程中坐标值的数据转换及程序编制。

In this paper we discuss the representation of integral circle,cycloid and sinusoid on a period by uniform C-B-splines of degree 3.

本文给出了整圆、一个周期上的摆线及正弦曲线的三次均匀C-B样条表示。

A digital frequency synthesizer without ROM look up table is presented,a piecewise linear interpolation scheme is used to approximate a sinusoid function.

该方法使用具有分段连续的线性分段来近似正弦函数曲线的第一象限部分,根据正弦曲线的对称性,构成完整的正弦曲线。

Considering the sine curve as the primary equation of hydraulic geometry andsolving togather with continunity eqution of water flowing and other relative equations, depth, breadth and slope of sinuous channel have been deduced.

选用正弦曲线的河床形态作为原生的河相关系式，与水流连续性等方程联解，导出蜿蜒型河道的河相关系式。

A real-time fast interpolation algorithm for hdical and sine curves based on the principleof time-slicing method is proposed.

提出了一种基于时间分割法的带前加减速控制的螺旋线及正弦曲线的快速插补算法，并分析了其插补精度；该算法具有速度快、精度高等优点。

This paper discusses a method of synthesizing free curve and sine curve.

本文提出自由曲线和正弦曲线合成的方法,通过调整正弦曲线的幅值和频率,改变合成曲线的形状,这种方法易于实现和分解,并可用于描述随机形状。

According to the actual requirements of the curve realignment after the existing railway speed increasing,the traditional theory of involutes is abandoned and the coordinate measurement is used to directly realign curves.

针对既有铁路提速后曲线整正的实际要求,抛弃传统的渐伸线原理,利用测点坐标直接进行曲线整正。

The mathematical model for railway curve adjustment is derived, and the corresponding formulas for curve realignment are given.

在研究铁路线形特点和曲线整正原则的基础上,探讨以既有铁路线实测坐标为观测值,运用最小二乘平差方法进行曲线整正计算的方法。

Existing railway curve realignment is an important part of existing railway reconstruction design,and the result directly affects the design quality,project cost and operation safety.

既有铁路曲线整正是既有线改建设计中的重要部分,且结果直接影响最终设计质量和运营安全。

Improves the precision of calibration curve.

提高了网点校正曲线（度转换）精度。

Black Matrix Zero

正邪幻想曲Zero

Conditions for Determining the Regularity of Bézier Curve and Surface

bézierb>曲线b>曲面正则性的判别条件

A Method for the Modification of Curves and Surfaces with Rational Bezier;

一类基于有理Bezier的曲线曲面修正方法

gamma ray correction

自然伽马测井曲线校正

area under normal probability curve

正态概率曲线下的面积

a wave whose waveform resembles a sine curve.

波形类似正弦曲线的波。

Flexural Modulus - 1% Secant (Based on ASTM D 790A)

挠曲模量–1%正割（根据ASTMD790A）

pervert the truth/the course of justice

歪曲事实[妨碍司法公正]

A curve or surface that is tangent to every one of a family of curves or surfaces.

包络线，包络面一条曲线或一个曲面，与一组曲线或曲面中的每一曲线或曲面保持正切

Comparison between the non-hyperbolic and hyperbolic NMO correction results of 3D converted waves shows that the non-hyperbolic method is better than the hyperbolic method.

三维转换波非双曲动校正和常规双曲动校正结果对比表明,非双曲方法优于双曲方法。

A mental or moral twist, aberration, or deviation.

不正常精神或道德上的扭曲、变态或歪曲

The Bending、Vibration and Buckling of Rectangular Orthotropic Thin Plates;

正交各向异性矩形薄板的弯曲、振动和屈曲

A Study on the Tune Sort of Shizi Xu in Nanqu Jiugong Zhengshi;

《南曲九宫正始》[狮子序]曲牌的宫调归属论析

Investigation of a Simplified Approach for the Smoothness Correction and Lofting of a Curve

曲线圆顺度拨正和曲线放样方法简化的探讨

these included ashima (music by Wan Li and Huang Tian), Border Town (music by Yang Tianjie), The Story of Spring Fragrance (music by Piao Ruixing),

包括《阿诗玛》(万里、黄田曲)、《边城》(扬天解曲)、《春香传》(朴瑞星、金正 曲)、

The mean of a normally distributed population lies at the center of its normal curve.

正态分布总体的平均数在正态曲线的中心。

A normal curve diagram labeled with stages of the adoption process.

标有应用流程阶段的正规曲线图。