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1)  sine derivative curve
正弦派生曲线
1.
According to sine derivative curve which is put forward by langbein W B,Leopold L B,the situation of mountain river meanders in Yalujiang is analyzed,and a new solution is selection of curvature r.
通过利用拉宾和里奥普提出的正弦派生曲线理论,对鸭绿江山区河流弯道情况进行分析,探讨选取山区河流弯道水流弯曲半径新的方法,采取具有变化曲率半径的正弦派生曲线来规划航道走向,起到了优化环境的作用。
2.
Through analyzing and arranging the actual data measured of mountain area rivers in southwest of China,we summarize:The ideal channel flow route should have sine derivative curve flow route,harmonized flow direction,good flow route corner and bigger curve radius.
通过对西南地区山区河流实测资料进行分析整理 ,总结出 :正弦派生曲线水流线路、协调的水流方向、良好的水流转向角及较大的弯曲半径为理想的航道水流流路 ,并提出了该规律在工程设计中的应
3.
The paper puts forward a governing equation suiting for winding bend training of braided channel in the lower Yellow River,revises the planned thalweg at the sections where river training works are uncompleted at present and exams the layout of planned flow path based on the theory of sine derivative curve.
正弦派生曲线理论的基础上,提出了适合黄河下游游荡型河道的河湾整治流路基本方程,并对目前整治工程不完善的河段规划治导线进行了修订,对规划流路布设进行了检验。
2)  sinusoid [英]['sainəsɔid]  [美]['saɪnə,sɔɪd]
正弦曲线
1.
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。
2.
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。
3.
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。
3)  Sine curve
正弦曲线
1.
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。
2.
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。
3.
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。
4)  sinusoidal curve
正弦曲线
1.
A Fast Approach to Detect a Kind of Sinusoidal Curves Using Hough Transform;
一类正弦曲线的Hough变换快速检测方法
2.
In present work, it is exceedingly difficult to control the scale and precision of some special surfaces such as sinusoidal curve, ellipse, parabola, etc.
在普通机床加工一些特殊曲面如:正弦曲线、椭圆、抛物线等是非常难控制其尺寸精度的,而螺纹车削由于切削速度较快,切削力较高和作用力聚集范围较窄导致加工难度高。
5)  sinusoid [英]['sainəsɔid]  [美]['saɪnə,sɔɪd]
正弦曲线,正弦波
6)  non-sonusodial diagram
非正弦曲线
补充资料:正弦曲线

正弦曲线可表示为y=(sin x)+k,定义为函数y=(sin x)+k在直角坐标系上的图象,其中sin为正弦符号,x是直角坐标系x轴上的数值,y是在同一直角坐标系上函数对应的y值,k是常数(k∈r)

正弦曲线为过原点的以原点为对称的波浪线

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