1) chromatic curve
色差曲线
2) difference product curves
差积曲线
1.
The results show:from the midstream to downstream,the difference product curves of hydrological stations are rising at first,then continually going down.
研究结果表明:随着从上游至中下游的顺序,各水文站年径流量差积曲线先上升,而后呈长时期连续下降的趋势,而且顺河流方向越往下,曲线的坡度越明显,即径流量减少的趋势越明显,但黑河干流上游地表径流在过去的几十年里并没有减少,且有一定程度的增加,这说明各水文站径流的差积曲线主要是由于人类活动的影响,导致下游生态环境受损。
3) error curve
误差曲线
1.
The theoretical errors between the beeline method and the design equation were calculated by using Matlab mathematic software,the error curve was drawn,the errors between two design methods were analyzed and discussed.
利用Matlab数学计算软件,对流浆箱锥形布浆总管采用直线法和设计计算公式的理论误差进行了计算并绘制出误差曲线,以此对2种设计方法之间存在的误差进行了分析和探讨,并结合工程实例对得出的优化方案进行了验证。
2.
It is to measure error and error curve of gear′s major specifications, using modularized designing soft ware system and gear′s composition measuring instrument of computer controlling.
提出采用模块化设计软件系统，配用微机控制的齿轮综合测量仪，测出齿轮主要项目的误差和误差曲线的方法，可大大提高测量精确度，效率和可靠性。
3.
The optimum scheme of steering trapezium of four-wheel vehicle is investigated, the steering trapezium is optimized by using three kinds of optimum schemes, a parametric optimum program is developed, the approximation error curves of various schemes is put forward, the optimum results are compared.
对轮式车辆转向梯形优化方案进行了研究,用三种方案对转向梯形进行了优化,编制了参数化的优化程序,给出了各种方案的逼近误差曲线,将优化结果进行了对比。
4) time difference curve
时差曲线
1.
It is necessary to record the linear scale before and after log and the time difference curve in the acoustic variable density log.
阐述了声波变密度测井时对其进行测前、测后线性刻度及记录时差曲线的必要性。
5) differential curve
差分曲线
1.
The differential curve of apparent resistivity has a higher resolution than apparent resistivity itself.
视电阻率差分曲线具有比视电阻率曲线更高的分辨率。
6) aberration curves
象差曲线
1.
The result aberration curves obtained from the design above is analyzed .
设计了一种新型的显微／望远两用镜，讨论了此两用镜的光学系统设计方案和光学系统各单元透镜组的结构参数，对所得的象差曲线结果进行了分析，给出了一个此光学系统的结构参数实例和产品外形轮廓。
补充资料：积差相关系数
积差相关系数
product moment coefficient of correlation
积差相关系数(produet moment eoeffieientof eorrelation)表示两个连续变量X和Y之间相关联程度的统计量。它表示一个变量伴随着(或独立于)第二个变量的变化范围。用:。「或;表示。因它是根据英国统计学家皮尔逊提出的积差法而计算的相关系数，所以也称皮尔逊相关系数。其基本计算公式为: 、韶 式中x为X数列各量数与其平均数之差，y为Y数列各量数与其平均数之差，S，，s、分别为尤和Y数列各变量的标准差，N为各对量数的总数。如将上式中的N消去，则得一简便公式如一F: 、=…赓湍斋 _乏习 一价艺XZ)(艺，2) (任旭明撰金志成审)
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