抛物线的
- 与 抛物线的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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On the basis of gas migration equation -Darcy Law,coal seam gas content equation -parabola equation ,ideal gas state equation and the continuity equation s of the gas flow,a dynamic model of gas unilateral flow in the coal seam is set .
根据基本假设,对煤层瓦斯流动规律进行了研究,运用瓦斯运动方程—达西定律、煤层瓦斯含量方程—抛物线方程、理想气体状态方程以及气体流动的连续性方程,建立了煤层单向瓦斯流动的动力学模型,并根据边界条件和初始条件,对动力学模型进行了求解,推导出煤壁单位面积的瓦斯涌出量的计算公式,分析了瓦斯涌出量的影响因素,利用测得的数据,进行了实例计算,并用vc编制了计算机程序。
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For the long period of oxidation, the Wagner's law for thick film oxidations was obeyed above 1000℃, that is the parabola relationship exists between the oxidation rate and the oxidation time, whereas there exists a linear dependence between them as the temperature is lower than 1000℃.
对于较长时间的氧化而言,CVDRe在1000℃以上的氧化遵循瓦格纳的厚膜氧化规律,即氧化速率遵从抛物线定律;而在较低的温度,CVDRe的氧化失重与时间呈直线关系。
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To reduce the error between the interpolation function regaining the sampled signal and interpolation function ha by Shannon sampling theorem, this paper suggests that the common linear interpolation is replaced by a second order approximation of the parabolic interpolation.
为减小恢复被采信号所用的内插函数与山农采样定理要求的内插函数ha之间的误差,提出了用抛物线内插--ha的二阶近似代替常规的线性内插。
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In the first class there is a distinct linear region in the initial portion of the stress-strain curve corresponding to stage I in the continuous fiber composites, followed by a parabolic stress-strain curve, corresponding to stage Ⅲ in the continuous fiber composites.
在应力—应变曲线的初始部分中,第一级是一明显的线性区域,与连续纤维组织的复合材料的第一部分相对应,接下来被比喻成应力—应变抛物线,与连续纤维组织的复合材料的第三部分相对应。
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If I was closer, I could hear the animal's deep hiss of breath and the sounds of her undershell scraping over logs. If there was a moon, I might see the light glistening off the parabolic curve of the still wet shell.
再靠近一些便能听到它呼吸的低沉的嘶鸣和腹甲刮擦原木的声音;若是晴夜,我还可以看到折射在仍旧湿润的外壳抛物线上的闪闪月光。
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Result Richards Model and Monodic Quadratic Equation could properly describe grain dry matter growing process and the change process of grain filling rate with days after anthesis. There was big difference in average grain filling rate, maximum grain filling rate under different planting density. Average grain filling rate 1.26 mg/ and maximum grain filling rate 2.44 mg/ of T7 were the quickest, and the average grain filling rate 0.94 mg/ and maximum grain filling rate 1.99 mg/ of T12 were the slowest, and the maximum difference percentage of the average grain filling rate and maximum grain filling rate among different density were 33.98%, 22.61%. There was significant correlation between average grain filling rate, maximum grain filling rate, grain filling active duration, rapid increasing stage and thousand grain weight, and the correlation coefficients were 0.628*, 0.630*, 0.849**, 0.739**. Active grain filling duration contributed mostly to TGW.
结果不同密度处理间千粒重、单位面积穗数、穗粒数、单株穗数、单位面积籽粒产量均存在显著差异;不同密度处理冬小麦的籽粒灌浆均符合慢-快-慢的&S&型生长特性,用Richards模型能很好地模拟冬小麦籽粒增重过程,用一元二次抛物线方程能较好地模拟冬小麦灌浆速率随花后时间变化过程;不同密度处理间平均灌浆速率、最大灌浆速率有较大差异,最大差异率分别为33.98%、22.61%,T7的平均灌浆速率1.26mg/及最大灌浆速率2.44mg/均最大,T12的平均灌浆速率0.94mg/及最大灌浆速率1.99mg/均最小;平均灌浆速率、最大灌浆速率、灌浆活跃期、灌浆快增期与千粒重显著或极显著正相关,相关系数分别为0.628*、0.630*、0.849**、0.739**;通径分析表明,灌浆活跃期对千粒重的贡献最大。
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Took Sanchaji suspension bridge in Changsha as a case study, based on different hypothesis, two methods were deduced, the parabola method of cable gravity distributing uniformly along the span, and the catenaries method of gravity distributing equally along the curve.
以长沙市三汊矶湘江大桥为工程背景,对自锚式悬索桥的主缆线形及无应力长度的计算方法进行了研究,推导出两种基于不同假定下的主缆线形及无应力索长的计算方法:假定主缆自重沿跨径均布的抛物线法和假定主缆自重沿弧长均布的分段悬链线法。
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And his entry for the most important competition of his life was a series of sketches of triangles and random parabolas, free shapes bounded by "curves in space geometrically undefined".
在他职业生涯最重要的那次比赛中,他的参赛作品是一连串令人目眩的形态组合图:三角形、恣肆凌乱的抛物线以及未能在空间几何学上明确定义的无数曲线,这些曲线环绕着看似信手涂鸦而来的图形。
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The shells of the competition entry were originally of undefined geometry, but, early in the design process, the "shells" were perceived as a series of parabolas supported by precast concrete ribs.
在最初的歌剧院设计竞赛中,这些壳并没有几何学上的定义,但在设计过程的开始阶段,这些&壳&被定义为由一系列的混凝土肋骨支撑起来的抛物线。
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There are several ways toobtain the DBHF self-energy from the G matrix used before, such as a simple method,where the Dirac structure of the nucleon self-energy is obtained from the momentumdependence of the single-particle energy, and a projection method.
在不同的不对称系数条件下,我们计算出的各密度处的核子平均结合能满足经验的抛物线规律,给出了密度依赖的不对称能。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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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。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力