数
- 与 数 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In Section 2.2 (p. 40) we first used string literals and learned that the type of a string literal is array of constant characters. We can now be more explicit and note that the type of a string literal is an array of const char. A string literal is an instance of a more general construct that C++ inherits from C: C-style character strings .
在 第 2.2 节中我们第一次使用了字符串字面值,并了解字符串字面值的类型是字符常量的数组,现在可以更明确地认识到:字符串字面值的类型就是 const char 类型的数组。C++从 C 语言继承下来的一种通用结构是 C 风格字符串,而字符串字面值就是该类型的实例。
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The concepts of the S-simplest form of a seminorm family P and the P-reflexive locally convex space are introduced. The seminorm family P and its every S-simplest form generate the same locally convex separated topology on X are proved.
引入半范数族P的S-最简形式和P-自反局部凸空间的概念,证明了半范数族P和它的每一个S-最简形式都生成X上相同的局部凸拓扑。
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The number of which a given number is the logarithm .
一个已知数是某数对数的数。
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The author gives two methods to specify the scale interval by using fitting of three—broken—line as well as statistical hypothesis testing based on the estimate of the derivative of the double logarithmic curve.
由于实际动力系统的混沌吸引子其自相似性只能在一定的尺度范围内存在,文中给出了两种无标度区间的确定方法以正确地估计吸引子的分形维数,即三折线拟合方法和通过直接估计双对数曲线上每一点的导数并利用统计假设检验方法确定合理的无标度区间。
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The charm of the plateau goes far beyond the acclamations of the geoscientists; natural landscapes can also move ordinary people. The dozens of rows of glaciers at the foot of Xinqing Peak run several dozen kilometers long, with a thickness of over 30 meters, yet the volcanic hot springs still erupts from them, and the story of fire in the ice has been lasting for tens of thousands of years. The Wulao Peak flies upward in the splashing of the waterfalls running down from the glaciers several hundred meters high, the momentum surpassing any rock waterfalls we have heard of before.
高原的魅力远不止于地理学家口里的啧啧赞叹,许多自然胜景也同样会让我们寻常人感到震颤:新青峰脚下纵列数十道的冰川,长达几十公里,厚过30米,却仍然不能熄灭从中喷射而出的火山沸泉,冰火浴生的故事在那里上映了数万年;五老峰则从高达百米的冰川里下泻的瀑布水沫中飞扬,其气势和声涛胜过我们熟知的任何岩石瀑布。
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In this paper, the direct simulation Monte Carlo method is employed to simulate flows of modeled air vehicles having simple geometric shape such as delta wing at a Knudsen number between 0.001 and 0.1 for various Mach number and angle of attack conditions. With the calculated aerodynamic forces and heating, we obtained the general behavior of the rarefied gas effects on the vehicles' aerodynamics.
本文采用直接模拟 Monte Carlo 方法,模拟了简单外型如三角翼形的模型飞行器在努森数为 0.001到 0.1的范围内以不同来流马赫数和不同飞行攻角飞行时的流场,计算了飞行器所受到的气动力和气动热,获得了稀薄气体效应对飞行器气动性能影响的一般规律。
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In virtue of Fluent of CFD software, we carry though computation of aerodynamics of an air-to-air missile in different Mach meter and different attack angle and gained movement trend of lift coefficient、drag coefficient and pitching moment coefficient with variety of Mach number and attack angle, meanwhile, we also obtain distributing trend of pressure, temperature and weather velocity.
借助于商业CFD软件FLUENT,对某型空空导弹在不同攻角、不同飞行马赫数的气动力进行了计算,得出了该型导弹升力系数、阻力系数和俯仰力矩系数随飞行马赫数和攻角的变化规律以及导弹表面的压力分布、温度分布和来流速度分布。
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Finally, based on the optimized configurations,the lift coefficients, drag coefficients and lift-drag ratios were calculated with hundreds of in-flow Mach numbers and angle of attacks.Some interesting phenomena occured and were depicted.
最后,针对得到的优化外形,计算了不同来流马赫数和攻角下的流场并分析了升力系数、阻力系数以及升阻比随马赫数和攻角变化趋势,得到了一些有趣的规律。
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The commercial CFD software Fluent was used for simalation of aerodynamic charactirestics of some terminal guided munitions in terminal segment under different affack anyle and mach, the variation lav of or lift coeflienct, drag coeflient and roll moment coefficient with flight mach and attacls angle was obtained, The semulation result shows the caculated aerodynarve parameters can be referend to high accuracy firing table for the terminal guided projectile.
文中主要利用商业CFD软件Fluent对某型末制导炮弹的末制导段在不同攻角、不同飞行马赫数的气动特性进行了数值仿真,得出了该型末制导炮弹升力系数、阻力系数和滚转力矩系数随飞行马赫数和攻角的变化规律。结果表明,计算所得气动参数可以为该末制导炮弹编制高精度射表提供数据依据和参考。
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The analytical results showed that Reynolds number and Mach number have a rather obvious effect on airfoil aerodynamic performances.
分析结果表明:雷诺数和马赫数对翼型气动性能有较大的影响。
- 推荐网络例句
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The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.
此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。
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To get the business done, I suggest we split the difference in price.
为了做成这笔生意,我建议我们在价格上大家各让一半。
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After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.
一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。