变热
- 与 变热 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Because of their high tensile strength and good resistance against creep, fatigue and hot corrosion at elevated temperatures, nickel base superalloys are widely used for making the key components operating under the uncharitable conditions such as high temperature and high speed in aviation, power and petrochemical industries.
镍基高温合金具有良好的高温拉伸强度、高温蠕变抗力以及相当优异的抗高温疲劳和热腐蚀性能,广泛地用于制作航空、动力、石化等部门中承受高温、高速等苛刻工作条件的关键部件。
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The unimproved testing device and method is based on the manual work, the error is inevitable.
评价一种磁性制冷材料的性能好坏,对其进行绝热温变测试是很重要的一步。
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In addition,the experimentalresults of the order parameter,correlation length,magnetic susceptibility[34] andthermal expansion given[36] show that the critical behavior in the Peierls transitioncan be described by three dimensional XY model.However,whether the specificheat behavior belongs to the universal class or not is not clear.
另外,文献[34]的序参量、关联长度和磁化率,以及文献[36]的热膨胀系数的实验结果分析表明,K0.3MoO3在派尔斯相变过程中的临界行为可用三维XY模型来描述,但其比热的临界行为是否也属于该普适类,目前并不清楚。
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It may reduce the temperature in cities, shorten the tart-up frequency and the operating time of fridges and air-conditioner, diminish the transformation of electric energy to thermal energy and cut down sunlight heat's sucking the vapory if we create more green areas and increase the deposit of timber so as to store carbon dioxide in it.
分析了植树造林有助于缓解气候变暖的原理,包括扩大绿色覆盖面积,增加木材蓄积量,将二氧化碳贮存于木材之中;增加绿色覆盖面积,可以降低城市气温,减少电冰箱、空调开启次数和运行时间,减少电能向热能的转化;降低太阳光、热对地气的抽吸作用。
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In Chapter 3 the variational method and optimal algorithm for estimation of the surface flux are discussed.
第三章论述估算感热通量和潜热通量的变分技巧和最优算法。
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As people spend more time indoors, heating, ventilating and air-conditioning systems that provide high thermal comfort and indoor air quality become more and more important.
随着人们在室内时间的增加和对室内环境要求的提高,使用空调系统提供良好的热舒适性和室内空气品质变得越来越重要。
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In this project, we study the theory of higher order differential equations in Banach spaces and related topics. We solve an open problem put forward by two American Mathematicians and two Italian Mathematicians concerning wave equations with generalized Weztzell boundary conditions, introduce an existence family of operators from a Banach space $Y$ to $X$ for the Cauchy problem for higher order differential equations in a Banach space $X$, establish a sufficient and necessary condition ensuring $ACP_n$ possesses an exponentially bounded existence family, as well as some basic results in a quite general setting about the existence and continuous dependence on initial data of the solutions of $ACP_n$ and $IACP_n$. We set up quite a few multiplicative and additive perturbation theorems for existence families governing a wide class of higher order differential equations, regularized cosine operator families, regularized semigroups, and solution operators of Volterra integral equations, obtain classical and strict solutions having optimal regularity for the inhomogeneous nonautonomous heat equations with generalized Wentzell boundary conditions, gain novel existence and uniqueness theorems,which extend essentially the existing results, for mild and classical solutions of nonlocal Cauchy problems for semilinear evolution equations, present a new theorem with regard to the boundary feedback stabilization of a hybrid system composed of a viscoelastic thin plate with one part of its edge clamped and the rest-free part attached to a visocelastic rigid body. Also we obtain many other research results.
在本研究中,我们对Banach空间中的高阶算子微分方程的理论以及相关理论进行了深入研究,解决了由美国和意大利的四位数学家联合提出的一个关于广义Wentzell边界条件下的波动方程适定性的公开问题,恰当地定义了Banach空间中的高阶算子微分方程Cauchy问题的算子存在族及唯一族,建立了齐次和非齐次高阶算子微分方程Cauchy问题适定性的判别定理,获得了关于高阶退化算子微分方程的算子存在族、正则余弦算子族、正则算子半群、Volterra积分方程解算子族的乘积扰动和混合扰动定理,得到了关于以依赖于时间的二阶微分算子为系数的一大类非自治热方程非齐次情形下的时变广义Wentzell动力边值问题的古典解、严格解的最大正则性结果,获得了半线性发展方程非局部Cauchy问题广义解和经典解存在唯一的判别条件,从实质上推广了现有的相关结果;得到了一部分边缘固定而另一部分附在一粘弹性刚体上的薄板构成的混合粘弹性系统的边界反馈稳定化的新稳定化定理,还建立了一系列其他研究结果。
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With finite differential method, the discretization equations are derived by chosing control volume integral method to solve the unsteady one-dimensional heat conduction question with variable physical properties, and the temperature distributinn in ladle lining in preheat is computed.
应用有限差分法,选用控制容积积分法推导出离散化方程组,对一维不稳定态变物性热传导问题进行求解,计算出钢包在预热过程中包衬的温度分布。
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In parts it was still green, and dotted with antelopes and warthog, but as our journey progressed, it became drier and hotter, and the nature of the occasional stops changed, too.
有些地方仍有绿意,点缀着羚羊和疣猪,但是随着行程的深入变得越来越干越来越热,自然的变化也停止了。
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" We are so familiar with the fact that man ages, that people have for years assumed that the process of losing vigor with time, of becoming more likely to die the older we get, was something self-evident, like the cooling of a hot kettle or the wearing-out of a pair of shoes."
我们对人会老化这一事实熟悉之深,以致多年来人们就认为精力与日俱减和越老越容易死是不言自明的事,正像热锅变凉或是鞋子会穿破一样。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。