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对流
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  “对流”译为未确定词的双语例句
    Hybrid Laplace transform finite element method for solving the convection-dispersion problems
    求解对流-弥散问题的混合拉普拉斯变换有限单元法
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    A study on the advection-dispersion problems in the presence of wells
    在井流影响下的对流-弥散问题研究
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    Application of random simulation method in analyzing the model of pure-convection water quality
    随机模拟方法在求解纯对流水质模型中的应用
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    The governing equations include the conservation equations of mass, momentum and energy, as well as the state equation.
    采用热-流体连续介质的动量守恒方程、能量守恒方程和质量守恒方程,并引入了流体热力学的状态方程描述地幔对流和造山动力学过程.
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    It is shown that there are the cycles of 220±, 65±, 30± and 10±Ma in the evolution of basins.
    研究成果表明:220±Ma周期是银河年周期对地球的影响,65±Ma周期反映了太阳系在银道面上、下的运动周期及地幔对流周期对地表作用结果;
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This paper deals with the cause-of heat increase in the lower atmosphere in Hai-Cheng region prior to the earthpuake.By means of the temperature tendency equation, each item of heating factors has been Considered. The vertical velocity item's (convection item) value was-8.6℃/day, -3.8℃/day, on 3rd and Eeb, respectiely in the 1000rob to 970mb level, The radiation item's value was3.9℃/day, 3.3℃/day on and 4th Fev. respectively, The horizotal transport item's value was 0.43/day, -0.8℃/day on 3rd and 4th. Feb. respectively....

This paper deals with the cause-of heat increase in the lower atmosphere in Hai-Cheng region prior to the earthpuake.By means of the temperature tendency equation, each item of heating factors has been Considered. The vertical velocity item's (convection item) value was-8.6℃/day, -3.8℃/day, on 3rd and Eeb, respectiely in the 1000rob to 970mb level, The radiation item's value was3.9℃/day, 3.3℃/day on and 4th Fev. respectively, The horizotal transport item's value was 0.43/day, -0.8℃/day on 3rd and 4th. Feb. respectively. The latent heat item's value was Very small. The Sensible heat value (flux of sensible heat at atmosphere bottom ), was calculated from the temperature tendency equation inversely; it seemed to be 7.4℃/day, 3.8℃/day on 3rd and 4th respectively. But the odeservations of the mean air temperture at 1.5m height in Hai-Cheng region showed that it appeared above the average ground temperature during the half period of lst—4th. Feb. It hinted that during the half period the sensible heat was transported from atmosphere to t-he ground. Thenet sensible heat transport was near zeros.The result shows that the heating mode of the lower atmosphere prior to the earthquake is Veery different from traditional heating (conduct, eddy transport) It may be concerned with the pollution of gases which overflowed out of ground prior to theearthquake.

本文提出了震前低层大气的增温原因,利用温度倾向方程,考虑了每一项加热因子。铅直速度项(对流项)的值为-8.6°/天(3日)、-3.8℃/天(4日),位于地面至970毫巴的薄层内,辐射项分别为+3.9℃/天、+3.3℃/天,水平输送项,+0.43℃/天,-0.8°/天,潜热项很小。感热项(下垫面感热通量)是从倾向方程中倒算出来的,似乎分别是7.4℃/天,3.8℃/天。然而平均气温的观测表明,在1—4日的一半时间内高于平均地温。它意味着一半时间内感热输送是从大气输向地面,感热的净输送为零。这个结果表明震前低层大气加热非常不同于传统方式(热传导、涡流扩散),它似乎与地气污染有关,是震前地下所逸放出来。

The third paper outlines the rapid advances of world-wide studies in the models of mantle convec- tion and subcrustal stress fields througth inversion of landsat gravimetric data collected in the recent 20 years.The paper presents the theoretical basis of the inversion technique and observation facts,dis- cussing the relationship between the subcrustal stress fields and the distribution of geological structures, earthquake activity,volcanoes and mineral deposits.The distribution of the suberustal stress fields...

The third paper outlines the rapid advances of world-wide studies in the models of mantle convec- tion and subcrustal stress fields througth inversion of landsat gravimetric data collected in the recent 20 years.The paper presents the theoretical basis of the inversion technique and observation facts,dis- cussing the relationship between the subcrustal stress fields and the distribution of geological structures, earthquake activity,volcanoes and mineral deposits.The distribution of the suberustal stress fields and the relation of the subcrustal stress field to the seismogenic model of Tangshan earthquake are also elaborated.

地壳上地幔的应力场问题,是固体地球物理学、地质学和地震学等研究领域中的最基本问题。近十几年来,随着空间探测技术的发展,在应用卫星重力数据反演地幔对流模式和壳下应力场方面的研究进展很快,汇编介绍如下:

Based on the method "from static to motion" and "from surface to depth", this paper analyses the geophysical, geochemical, geological and historical material in the continent of China. Seismicity is connected with motions in the depth of eareh. It is suggested that active regions of strong earthquakes M≥6 are under the control of lithosphere thickness: the fault only occurred at the some thickness of lithosphere controls the position of epicentre. As the material activities of asthenosphere are related to the...

Based on the method "from static to motion" and "from surface to depth", this paper analyses the geophysical, geochemical, geological and historical material in the continent of China. Seismicity is connected with motions in the depth of eareh. It is suggested that active regions of strong earthquakes M≥6 are under the control of lithosphere thickness: the fault only occurred at the some thickness of lithosphere controls the position of epicentre. As the material activities of asthenosphere are related to the history of neighboring plate action and the active region of convection cell changes with time, in the seismicitive region changes will take place.

本文根据“由浅入深”、“由静到动”的研究方法,分析了我国大陆的地球物理、地球化学以及地质发展历史的实际资料,把地震活动与深部物性活动联系起来,提出了M≥6级地震在空间上的活动范围受岩石圈厚度控制;断层只在一定岩石圈厚度范围内对强震震中的位置起控制作用。由于软流层的物质活动与相邻板块活动的历史有关以及对流单体活动区随时间的变化,因此地震活动也将发生变化。地震是地质作用的结果,强地震的活动也是地球内部物质活动的表现。研究地震活动与地球动力学的关系,是一个非常重要的课题。

 
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