产生的
- 与 产生的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Armed with this information and further analyses, Rumble, lead author Bekker, and colleagues propose the following scenario today in Science . Early in Earth's history, volcanic eruptions spewed massive amounts of sulfur dioxide into the atmosphere, where UV sunlight broke down the gas and created the odd sulfur isotope ratios. The sulfur descended with the rain and accumulated into sedimentary beds on the sea floor. Once there, superheated water from geothermal vents at various locations on the sea floor cooked the sulfur into sulfide. Finally, nickel-bearing magma welled up from Earth's mantle, combining with the sulfide to form nickel sulfide and encasing the compound inside volcanic rock called komatiite.
凭借这份资料和进一步的分析,朗布尔、研究论文的第一作者贝克及同事们今天在《科学》杂志上提出了如下的推测:在地球早期的历史上,火山爆发将大量的二氧化硫气体喷射到空中,太阳的紫外线将其分解,产生了奇特的硫同位素比值,这种硫随雨降下,积存于海底沉积层中;一旦到达海底,海底各处的地热出口所产生的温度过高的水把硫加热成硫化物;最终含有镍的岩浆从地幔中涌出,跟硫化物结合形成硫化镍,并将硫化镍包裹在一种叫做"科马提岩"的火山岩中。
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A 12-pound Canada goose striking an aircraft going 150 mph at lift-off generates the force of a 1,000-pound weight dropped from a height of 10 feet, according to Bird Strike Committee USA.
根据美国鸟撞协会的估算,一只12磅的加拿大天鹅与以150英里/时的速度起降的飞机相撞能产生的力相当于一个1000磅的重物从10英尺的空中落下产生的撞击力。
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According to the principle of quantum mechanics, exploringly presented the possible mechanism of large-scale expansion at forepart of earth, quanta earth tectonic dynamic mechanism formed from super solid state of centrosphere material, presented the integral tectonic criterion in the process of evolution of earth system considering potential of quanta, potential energy of gravitation and heat energy as a result of special state of matter of centrosphere.③Established the evolutional model of finite nonlinear expansion to of integral tectonic dynamic of earth expansion., presumed and gived the skeleton model of original forepart earth before expanding. Applying the universal large scale finite element software, for the first time considered heat power and self gravitation in the same model of tectonic dynamic model simultaneously.
较系统地讨论了地球膨胀整体构造动力的若干基本理论问题:①分析汇总了地球演化产生、积累和以各种形式损耗的总能量,根据考虑引力势能与热能的维里定理,对现时地球整体动力状态进行判断;②根据量子力学原理,探索性地提出地球大规模膨胀的可能机制——地核物质超固态形成量子简併压强产生的动力——地球量子动力,给出了考虑地核特殊物态的量子势能、引力势能和热能的地球系统演化过程中的整体动力状态判据;③建立了地球膨胀整体构造动力的非线性有限膨胀演化模型,推测给出膨胀前早期地球的轮廓性模型。
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One case is the earthquake on 21 September 1999 near Chi-Chi in central Taiwan.
在集集地震所产生的地表侦测部分,因为台湾中部地区繁密的植物覆盖及地震引起的变动产生不相关性,使得断层东边地区因低相关性而无法侦测变动情形;但断层西部因地势较平坦且变动量亦较小,因此以干涉技术可以清楚的侦测出其变化情形。D-InSAR与GPS资料都具有高精度的侦测结果,在垂直方向的比较结果均方根误差为3.3 cm,两者具有相当的一致性,因此在地震的变形侦测中,两者的量测资料可以有良好的互补作用。
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Under the control of microprocessor, this product with an oscillating implement embedded in can produce mulriple-scanning pulse electromagnetic wave with variable frequency and mulriple frequency conversion ultrasonic. Electromagnetic wave can get rid of the pests around electrical wire and ultrasonic can dispel the pests in other areas of the room. The product sends out frequency conversion signal of ultrasonic to circumambience. Once touches objects, it reflects and permeates the room. The combining of the two waves has mulriple effects on the central nervous and hearing system of the pests such as rats, cockroachs, spiders and ants. As a result, the pests would be on the rack and agonizing or even have the symptom of swivet and twitch.
它由完全内置的震荡器,在微电脑的控制下可产生多重扫描变频脉冲电磁波和复合变频超声波,电磁波主要解决电源线周围害虫的问题,而超声波是要消除室内其余区域的害虫,它向周围发射的变频超声波信号,当它碰到物体会反射,从而能充满整个房间,这两种波迭加在一起所产生的双重功效,对老鼠、蟑螂、蜘蛛、蚂蚁等害虫的中枢神经及听觉系统进行多重干扰,令其感到极度不适,恐慌不安,甚至表现出狂乱、抽搐等症状,并能使其丧失繁殖能力,迫使其逃离原地,从而达到驱赶害虫的目的。
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The aim of the dissertation is to try to give a substantial evidence for the opinions of history comparative linguistics at language variation providing the individual cases and to try to make the elucidation: The main reason that language variation produce is to not only and only is a mutation of inner part system because of the language with regulation,...
力图为历史比较语言学在语言变异方面的论题提供一个可资佐证的个案,试图说明:语言变异产生的主要原因不仅仅是由于语言系统内部的突变和调节,一些外部因素诸如人们的民族语言心理态度、性别、年龄、经济的向心力等等也能在语言的变异中产生相当大的作用。
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The thesis also draw several conclusions as follows:(1) Orthogonal experiment design method can be viewed as a special case of genetic algorithm, i. e. a genetic algorithm with a fixed initial population, an oriented-mutation operator and one evolution epoch.(2) In terms of running steps, genetic algorithm is more complex than orthogonal experiment design method.
论文首次对正交试验设计法和遗传算法这两种独立发展起来的方法进行比较研究,提出(1)正交试验设计法是遗传算法的一种特例,即是一种初始种群固定的、只使用定向变异算子的、只进化一代的遗传算法;(2)遗传算法产生的优化解优于正交试验设计法产生的优化解,且遗传算法处理交互作用项的效率高于正交试验设计法;(3)遗传算法的步骤比正交试验设计法复杂,所需的试验次数也要多。
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The results showed:(1)the factors which influence causal judgment were that the cause was the real cause or stimulative,the familiarity of the cause,and the covariation degree of causes with outcomes;(2)the character of questions didn't influence causal judgment;(3)causal judgment in some conditions were in accord with the probabilistic contrast model and the causal model theory,but they couldn't explain causal judgment in all conditions.
例如,在两个刺激同时出现并且之后伴随着一个结果事件出现的情况下,其中一个刺激对结果的作用可能被认为减弱了,另一个刺激被认为更易引起结果事件的产生[1]。多原因相互影响的现象,最初在动物条件反射中观察到,现在也已经在人类因果判断的实验中证实了[2]。研究因果判断中的多原因相互影响这一现象是有理论意义的,因为它证明了因果判断产生的情境重要性。
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The results show that the decalescence of catalyst bed affects the process of hydrogen peroxide catalytic decomposition greatly. If the catalyst bed is preheated or made up of materials with low thermal conductivity, that influence can be depressed. At the same time, the response characteristic of catalyst bed and the efficiency of catalytic decomposition can be improved. The low frequency pressure instability of catalyst bed occurs because of the coupling of catalytic decomposition and supplying. The decomposition plane pushes all the way through the catalyst bed during pressure oscillations, causing unreacted liquid hydrogen peroxide to be exhausted from the bed and leading to the appearance of liquid hydrogen peroxide channeling. Consequently, how to prevent or at least limit this channeling is the key to eliminate the pressure instability of catalyst bed. It was found that adding clapboard to the catalyst bed can depress the pressure instability efficiently.
结果表明催化剂床及催化剂的吸热对过氧化氢分解过程影响很大,对催化剂床进行预热或采用热导率低的材料制造催化剂床等措施,可以降低催化剂床壁面吸热对催化分解过程的影响,提高催化剂床的响应特性和催化分解效率;催化剂床的低频不稳定是催化分解过程与供应系统耦合产生的,催化剂床气体界面的波动过程中,液体过氧化氢穿透催化剂床形成过氧化氢液体通道,过氧化氢液体通道的产生和扩大是催化剂床不稳定的主要原因,也是消除催化剂床不稳定的关键,试验中在催化剂床内加入分流板成功地抑制了催化剂床的低频不稳定。
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For example, the roll elastic deformation breaks the statically determinate condition of roll system in duo mill, and this is the main reason of bearing longevity shortening and burning accident; in aluminium foil four-high mill roll system with a 1 mm gap, the ideal position kept by a 3 mm offset is out of effect, some phenomenon such as chock horizontal vibration, gyroscopic effect and micro dimensional dynamic cross happen in fact rolling process, abnormal super and partial load resulted by these is the main reason of the end thrust bearing accident; the thermal deformation of mill roll system accompanying the temperature raising not only changes the roller track age of rolling bearing, but also results a micro dimensional slow dynamic inverse cross that counteracts the gyroscopic effect in a degree.
如二辊高刚度轧机轧辊的弹性弯曲微尺度行为,破坏了辊系机构杆系的静定条件,成为轧机轴承短寿烧损的主要根源;铝箔四辊轧机只具有1mm的有隙辊系,凭借设置3mm偏移距和轧制力平衡产生的水平力以保持轧辊理想定位失去效用,却发生轴承座水平振动现象、陀螺效应和动态交叉微尺度行为,成为止推滚动轴承异常超偏载导致短寿烧损的主要根源;轧机辊系的伴随升温产生的热变形,不仅改变了滚动轴承滚道轮廓,还引起运动副内慢变动态反交叉微尺度行为,抵消陀螺效应的部分动态交叉角度。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。