1) bl4
曲差
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) difference surface
差曲面
1.
The definition of the difference surface and the meaning of every order parameters(including the 0~(th),the 1~(st),and the 2~(nd) order) is discussed in the papers,In addition,the complete parameters for three global form deviations have been derived mathematically.
差曲面是一种拓扑曲面,是研究接触问题的重要工具。
2.
According to the structure of spiral bevel gear grinder with six axes five linkages,the error and difference surface model of spiral bevel gear was established by the multi-body system theory and the gear meshing theory,considering the geometric and thermal error.
针对六轴五联动螺旋锥齿轮磨床结构,应用多体系统理论、齿轮啮合理论,建立了含几何误差、热误差的螺旋锥齿轮误差齿面与差曲面模型并进行了实验验证,仿真分析了砂轮分别沿X轴、Y轴平移时和绕C轴旋转时,螺旋锥齿轮理论齿面与误差齿面以及它们的差曲面。
3.
According to the structure of numerical control spiral bevel gear grinder with six axes five linkages, the difference surface of spiral bevel gear was established by the multi-body system theory and the gear meshing theory, and the difference surfaces were simulated when grinding wheel moves along X, Y axis and rotates circling C axis.
根据六轴五联动数控螺旋锥齿轮磨床结构,应用多体系统理论、齿轮啮合理论建立了螺旋锥齿轮的差曲面,仿真了砂轮在沿X、Y轴平移和绕C轴转动时的差曲面,并由此分析了磨床主轴各运动副误差对螺旋锥齿轮齿面生成的影响。
补充资料：曲差
曲差 曲差 经穴名。出《针灸甲乙经》。别名鼻冲。属足太阳膀胱经。在头部，当前发际正中直上0.5寸，旁开1.5寸，即神庭与头维连线的内三分之一与中三分之一交点上。布有额神经外侧支和额动、静脉。主治头痛，目眩，鼻塞，鼻衄等。沿皮刺0.3-0.5寸。艾炷灸3壮；或艾条灸5-10分钟。
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