1) projective theory of curve
曲线射影理论
2) projective theory of curves
曲线的射影理论
3) Curvilinear mapping
曲线影射
4) Projective theory
射影理论
1.
It has important effect for going further into the Projective theory of conic.
对深入探讨二次曲线的射影理论起到了重要的作用。
5) theoretical curve
理论曲线
1.
To the problems of the slope of the early period on log-log plot is more than 1 and the data of the middle period and late period is too discrete which makes the early period of theoretical curve can not be matched and too discrete middle and later data makes too difficult for interpreters to make acute analysis.
针对双对数图早期段斜率大于1,使理论曲线无法拟合;而中后期的压力导数数据太过离散,使得解释人员无法做出正确分析的问题,研究了用实测压力、温度资料计算天然气的PVT参数,应用计算的粘度和压缩系数对实测压力点进行校正,解决了早期段资料斜率增大的问题,使理论曲线能够较好地与之拟合;用积分变换对压力导数进行处理,解决了中后期资料离散化的问题。
2.
Then the time domain and frequency domain theoretical curves of the longitudinal vibration velocity of the pile head are calculated when there appears necking or fracture in the upper part of the pile.
文章介绍了基桩低应变动测正演问题的数理模型及计算方法,并据此计算了桩身浅部缩颈、断裂时低应变动测时域和频域理论曲线,提出了判断桩身浅部缩颈、断裂的方法,对浅部缺陷桩的动测曲线进行分析和判断,证实了这种方法行之有效。
6) theoretical curves
理论曲线
1.
By analyzing the discharge formulas of the seeping of isolated well among the homogeneous isotropic aquifer when the water level at the beginning is in horizontal and fixed state and no water is supplied from up and down of the well,relevant theoretical curves(well flow-functions) have been introduced.
通过分析均质含水层中的割离井渗流模型的井的出水量公式,引进相应的理论曲线(井流函数)。
补充资料：Hesse曲线(代数曲线的)
Hesse曲线(代数曲线的)
Hessian (algebraic curve)
11油限曲线(代数曲线的)【H台自11(.妙如允.抖e);recc咖，T~aaa，即r药pa一吸ee二o‘二p.助蓝] n次代数曲线(司罗玩水c~)的He丈祀曲线就是其极二次曲线能分裂为两条直线的点的集合，也是第一极曲线的二重点构成的集合.n次非奇异曲线的He丈七曲线是一条次数为3伪一2)、类为3(n一2)(3n一7)的曲线.设介O是这条n次曲线的齐次坐标方程，关丘=刁:f/刁xi刁、，则它的He丈犯曲线的定义方程为 !不:关:五，} }五:关:五31=0. }人，人2人3}特征不等于3时的三次非奇异曲线的H既七曲线与这条曲线交于9个通常拐点.因O.H改e(l 844)而得名. A .E.H困阳。B撰
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