抛物线

In whole test process, to compared with control group, hepatic hepcidin gene expression of test group on different phases had obviously differences with retinoic acid was administered. On early phase of test group , relative gene expression contents of hepcidin were gradually fall and the lowest level was on 8th、9th、10th day, then the hepcidin level gradually was ascendent. The curve was like a cavate parabola.

在实验周期内，模型组与对照组比较，肝脏铁调素基因表达在维甲酸灌胃的不同时间，存在明显差异：早期5、6、7天铁调素基因相对表达量逐渐下降，在第8、9、10天达到较低值，随后有回升，呈现凹陷的抛物线变化趋势；而对照组基本处于水平的轻微波动变化。

Meanwhile, because the boundary of a Voronoi cell contains parabolic or hyperbolic curves in the Euclidean metric, it is difficult to compute the Voronoi cell area in practice.

同时，在欧氏米制中，由于Voronoi区的边界包含抛物线或双曲线，因而Voronoi区的面积很难被计算。

The annually released amount of N, P, and K in dead roots and fallen needles was 5.41-36.5 kg/hm2, 2.86-25.77 kg/hm2, 3.1-15.73 kg/hm2 and 11.51-28.02 kg/hm2, 13.99-33.23 kg/hm2, 6.84-14.35 kg/hm2. The contents of N, P, and K in decomposing branch appeared the quadratic curve with time.

枯枝中N、P、K含量随分解时间的变化呈二次抛物线的变化趋势，分解一年后，N、P、K含量分别为0.2756%、0.0665%、0.0586%，生物分解系数分别为1.8229、2.8812、6.8379。

The math model was established based on the theory of parabola cableway.

在抛物线法多跨索道设计理论的基础上，建立数学模型。

The traditional collector rig, like contact slip collector ring and noncontact telegraph collector ring, can not be used in high rotational speed and loud noise background.

理论和试验研究发现，相比于直线修形和抛物线修形，正弦曲线修形在很大的工况范围内，具有良好的减振、降噪效果，特别是对于减小高频成分的振动效果更明显。

By experiments, it is proved that the parabola method is faster and more precise than the golden section method and the Fibonacci method in searching for extremum of compound pendulum. Furthermore, the method can offer some references for the study of other extremum in physics.

文章通过实验采集数据并加以分析，证明了抛物线法搜寻复摆极值点比黄金分割法和Fibonacci法有更好的搜寻效果，并且该方法对于搜寻物理学中其它极值点问题具有参考价值。

In this thesis, we design a subdivision scheme to generate conics and quadrics.

本文设计出了生成除抛物线和抛物面外的二次曲线曲面的Subdivision格式。

Conjugate gradient method, the use of Newton's law or the use of parabolic interpolation.

共轭梯度法，使用牛顿法或者使用抛物线插值法。

Any continuous curve can be closely approximated by a series of small parabolic segments.

任一连续曲线可以借一系列很小的抛物线线段较精密地近似表示。

According to the hypothesis of continuum, a tube with the corner strengthened is gained to make an equal of the frame-tube. B3-spline functions and parabola functions are applied to simulate the displacement functions of the frame-tube. The system of equations about the undetermined coefficients of displacement functions is deduced by using energy-variational principle, by solving which the displacement of the frame-tube is gained. Then the internal forces in the columns and beams of the former frame-tube are obtained according to the principles of elasticity mechanics.

根据连续化假设将框筒等效为角部加强筒体，将三次样条函数与抛物线函数结合假定框筒的位移函数，运用能量变分原理推导出了关于位移函数待定系数的方程组，解得位移函数待定系数进而解得框筒的位移，再根据弹性力学原理确定原框筒中梁柱的内力。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。