抛物线

A new distribution is proposed for the sake of the disadvantage of the constant circulation at present. The axial velocity in fornt of the blade intake along the radius reduces linearly, and the velocity trendline behind the blade export is close to parabolic curve, but the circulation should be decided by designers.

文中还对轴流泵设计有重要影响的流型进行了全面的分析和研究，指出现有等环量流型存在的不足，提出了改进流型设计：轴面速度在进口边前直线下降、出口边后呈抛物线分布、环量的分布规律由设计人员给定。

Bio-effects on corn seeds treated with diffirent magnetic field intensitiesshowed that there was a remarkable effect of the magnetic field on germination of corn seeds. The response of the MFI indicated that there was a parabolic curve for corn seeds no matter whether they are air dry seeds or wet dry seeds.

通过研究不同磁场强度处理玉米种子所产生的生物效应表明：磁场对玉米种子发芽率有显著的作用，无论风干种还是湿种，磁场作用效应是一条抛物线；最佳的磁场强度风干种为2000GS、湿种是1500GS。

The main results as follows:1. Dry weight of heading stage showed a parabolic curve relationship with yield. And grain yield correlated well with dry matter accumulation after heading and total dry weight of muturing stage. The accumulation of dry matter from N-n to heading stage correlated with photosynthetic potential.

水稻抽穗期干重与产量呈抛物线关系，抽穗后干物质积累量和成熟期总干重与产量均呈极显著线性正相关。N-n期至抽穗期干物质积累量随着光合势的增加而增加，两者相关达到显著水平，而与净同化率关系不密切。

It includes the following chapters: o Introduction to MATLAB o Root Approximations and Partial Fraction Expansion o Sinusoids and Complex Numbers o Matrices and Determinants o Review of Differential Equations o Power Series o Linear and Parabolic Regression o Solution of

它包括以下各章： o MATLAB o 根近似值的介绍并且部分分数展开 o Sinusoids 和复数o 矩阵和决定因素o 回顾的线的微分方程o幂级数o 和抛物线回归o 解决办法

During the parameter calculation of lateral parabolic interval,segment length equation may be used to solve the angle of inclination,so the corresponding dichotomy was given.

侧位抛物线井段参数计算中需要通过段长公式来反求井斜角，给出了反求井斜角的二分法。

Archimedes obtained the parabolic arch, spiral, circular area and volume as well as the ellipsoid, parabolic complex geometry and physical size.

阿基米德求得了抛物线弓形、螺线、圆形的面积和体积以及椭球体、抛物面体等复杂几何体的体积。

Central South University of Technology in Wuhan University of Science and Technology and other institutions of higher learning metallurgical help guide, companies have invested nearly 8 million yuan to develop a highly efficient type of parabolic, the diamond-surface mold brass.

在中南工业大学、武汉冶金科技大学等高等院校帮助指导下，企业先后投资近800万元开发研制出抛物线高效型、曲面钻石型结晶器铜管。

For all coatings oxidation followed a parabolic law up to 400 h.

在400 h内，各涂层的氧化均遵循抛物线规律。

The most important feature on the current weekly oil chart is the development of a parabolic trend.

在目前原油价格周线图上最重要的特征是抛物线趋势的形成。

We also need to look at the potential pullback levels in the current parabolic trend and for how the trend changes.

我们也需要观察当前抛物线趋势中潜在的回撤区位并找出趋势是如何变化的。

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。