查询词典 parabola

The mathematical model of the ratio of radiuses difference to electro-negativity difference and the critical cooling rate Rc was established. The same relationships with a shape of upturned parabola in all five kinds of alloys were obtained with this model.

建立了原子半径差与电负性差之比Δd/Δe与临界冷却速度R的数值模型，并在所有五种不同合金系中获得一致且开口向上的抛物线关系。

And in parabola-aligned images, we find that using the combination of two parabolas as the projection axis can segment teeth more precisely.

我们事先收集了一些样本，以统计的方式估计出牙齿的大小、银粉与非银粉间的颜色分布情况。

Beginning with parabolas, the author explores the issue of 定点 between a line and a parabola, eclipse, or hyperbola.

笔者从抛物线入手，对抛物线、椭圆、双曲线与直线结合的定点问题作了一个探索。

The second one: we studied the effect of temperature on performance of LDs. It was found that threshold current increase exponentially, outpower and slope efficiency decrease parabola and exponentially respectively. Coefficient of temperature shift is 0.24/K, whereas characteristic temperature also decrease with rise of temperature.

研究了温度对激光器各参数的影响，随着温度的增加，阈值电流呈指数增加，输出功率和斜率效率分别呈抛物线和指数关系递减，同时特征温度也减少，波长随温度的漂移系数为0.24nm/°C，并且总结了一些温度和结构设计方面的关系。3。

Firstly,through changing the shape of cutter-edge,three-segment parabola was used to substitute for the linear profile, and cutter surface equation was deduced.

首先，通过改变刀具切削刃的形状，以三段抛物线代替齿条的直线齿廓，推导出了刀具齿面方程。

Results showed that the sediment transportation ratio increased with the discharge of flow increased and changed in parabola form with the slope gradient.

结果表明径流输沙率随径流流量的增加而增加，径流输沙率随坡度呈抛物线形式变化，当坡度在21°~24°之间时输沙率最大；径流剪切力也具有类似变化。

Parabola House , a family home in Tokyo designed by Japanese architect Yasuhiro Yamashita of Atelier Tekuto.

抛物线，也有家庭在东京设计的日本建筑师山下泰裕的工作室Tekuto 。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。