1) parabolic oxidation
抛物线氧化
2) parabolic degeneracy
抛物退化线
1.
Complex equations of mixed (elliptic-hyperbolic) type with parabolic degeneracy;
带抛物退化线的混合(椭圆-双曲)型方程(英文)
2.
The Tricomi problem of second order equations of mixed type in a special domain was posed and discussed by previous authors,The present paper deals with the discontinuous Riemann-Hilbert problem for first order complex equations of mixed(elliptic-hyperbolic) type with parabolic degeneracy.
本文讨论带抛物退化线的一阶混合型(椭圆 双曲)型复方程的间断Riemann Hilbert边值问题。
3.
The paper deals with the discontinuous oblique derivative problems for second order linear equations of mixed (elliptic-hyperbolic) type with parabolic degeneracy,which include the discontinuous Tricomi problem for Chaplygin equation as a special case.
讨论了带抛物退化线的二阶混合型(椭圆-双曲型)方程的间断斜微商边值问题。
3) degenerate parabola
退化抛物线
4) parabolic variation
抛物线变化
1.
Under the condition of progressive loading,considering a parabolic variation of the horizontal permeability of soil in the disturbed zone and the combination seepage along both radial direction and vertical direction in the surrounding soil,the governing equations for the consolidation of a composite foundation was derived and their solutions were obtained.
在线性加载的情况下,考虑了扰动区土体水平渗透系数抛物线变化以及桩周土体的径、竖向组合渗流,给出了该问题的控制方程以及解答。
5) parabola
[英][pə'ræbələ] [美][pə'ræbələ]
抛物线
1.
Mathematical model and design methods of parabola well paths.;
抛物线型井眼轨道的数学模型及其设计方法
2.
Parabola Interpolation Based on Parametric Equation;
基于参数方程的抛物线插补方法
3.
Research on the parabola interpolation based on comparing point-by-point interpolation;
逐点比较插补法抛物线插补的研究
6) semiparabolic
半抛物线
1.
Based on analyzing the trait of its apparent viscosity, the fitting interpolation method of two semiparabolic segments was put forward in order to improve the fitting formulae of semisolid apparent viscosity.
在分析半固态金属表观粘度特点的基础上 ,提出了半固态金属表观粘度的两段半抛物线拟合插值法 。
补充资料：抛物线氧化
分子式：
CAS号：
性质：金属发生高温氧化时，一旦表面生成初始的氧化物膜，后续的氧化过程必须依靠金属离子或氧离子扩散通过氧化膜才能持续进行。氧化膜越厚，扩散越困难，这果氧化膜厚度x与氧化时间t的关系为x2=kt。这种过程称抛物线氧化，式中，k为氧化反应的抛物线速度常数。大部分金属与合金的高温氧化过程遵从抛物线氧化关系。
CAS号：
性质：金属发生高温氧化时，一旦表面生成初始的氧化物膜，后续的氧化过程必须依靠金属离子或氧离子扩散通过氧化膜才能持续进行。氧化膜越厚，扩散越困难，这果氧化膜厚度x与氧化时间t的关系为x2=kt。这种过程称抛物线氧化，式中，k为氧化反应的抛物线速度常数。大部分金属与合金的高温氧化过程遵从抛物线氧化关系。
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