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mantle
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  地幔
     Chronology and Geochemistry of Mafic Rocks from Fujian Province: Implications for the Mantle Evolution of SE China Since Late Mesozoic
     福建省基性岩的年代学和地球化学:晚中生代以来中国东南部地幔演化
短句来源
     Researching into Seismic Tomography and Mantle Convection
     地震层析成像与地幔对流研究
短句来源
     The Seismic Tomography on the Velocity Structure of the Crust and Upper Mantle in the Northeastern Margin of the Qinghai-Tibetn Plateau
     青藏高原东北缘地壳上地幔速度结构的地震层析成像研究
短句来源
     The Chemical and Isotopic Compositions and Their Origin of Upper Mantle Volatiles in Eastern China
     中国东部上地幔不同类型流体组成及其性质
短句来源
     Variable Viscosity Whole Mantle Convection and Surface Plate Motions
     全球变粘度地幔对流与地表板块运动
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  外套膜
     But the best growth conditions of the mantle cells are that the concentration of Ca~(2+) is 1g/L,Mg~(2+) 1g/L and Zn~(2+) 60μg/L.
     对外套膜细胞生长最好的组合为1 g/L的Ca2+,1 g/L的Mg2+,60μg/L的Zn2+.
短句来源
     The effect of D-MEM exceeded M199 in the growth of mantle cells.
     外套膜细胞在D-MEM中的生长优于M199;
短句来源
     Results show that the mantle and meat of Hyriopsis cumingii were rich in crude protein (meat:54.07%;mantle:45.74%),carbohydrate (meat:35.85%;mantle:45.56%),and minerals especially Ca(meat:168.60 mg/100g;mantle: 406.59 mg/100g).
     结果表明,三角帆蚌肉和外套膜中含有丰富的蛋白质(蚌肉:54.07%;外套膜:45.74%)、糖类(蚌肉:35.85%;外套膜:45.56%)以及矿物质元素,特别是钙(蚌肉:168.60mg/100g;外套膜:406.59mg/100g)。
短句来源
     There were three loci in liver and mantle respectively,Sod 2,Sod 3 showed polymorphisms in liver and Sod 2 ,Sod 4 in mantle;
     在肝脏中 SOD由 3个位点编码 ,其中 Sod- 2、Sod- 3座位具有多态性 ; 外套膜中 SOD由 3个位点编码 ,其中 Sod- 2、Sod- 4座位具有多态性 ;
短句来源
     The effects of three metal ions on the cultured tissue from mantle and epipodial tentacle of Haliotis discus hannai with Ca~(2+),Mg~(2+) and Zn~(2+) ions which are added into the M199 and RPMI-1640 medium are studied respectively. The experiment is projected according to orthogonal design L_(9)(3~(4)),the proliferation percent of tissue blocks is estimated as the indicator of growth.
     采用3因素3水平L9(34)的正交设计,以组织块增殖百分率作为评价指标,研究了在M199和RPMI-1640培养基中分别添加Ca2+,Mg2+,Zn2+金属离子对鲍的外套膜和上足触手组织培养的影响.
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  “mantle”译为未确定词的双语例句
     The abnormal mantle and deep tectonic process in the southern region of North China Plain
     The abnormal mantle and deep tectonic process in the southern region of North China Plain
短句来源
     Micro-PIXE analysis of trace element composition and their distribution in minerals of mantle peridotite
     Micro-PIXE analysis of trace element composition and their distribution in minerals of mantle peridotite
短句来源
     Study on the characteristics of crust mantle transition zone in Western Yunnan Province
     Study on the characteristics of crust-mantle transition zone in Western Yunnan Province
短句来源
     Upper mantle flow beneath the Northwest of China and its lithospheric dynamics
     Upper mantle flow beneath the Northwest of China and its lithospheric dynamics
短句来源
     On the high conductive layer near the Moho and the transitional zone between the crust and mantle in Tianshui region
     On the high conductive layer near the Moho and the transitional zone between the crust and mantle in Tianshui region
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  mantle
There are conductive bodies stretching from the crust into the upper mantle below the Bangong-Nujiang suture and Jinshajiang suture.
      
This may suggest heat exchange between the crust and mantle.
      
The origin of native Si-Fe alloy mineral is thought to be related with mantle and aerolite.
      
Petrochemistry of peridotites from North China: Significance for lithospheric mantle evolution
      
The results show that the cratonic mantle, which was refractory and existed when the kimberlites intruded in the Paleozoic, had almost been replaced by the newly accreted fertile lithospheric mantle during the Mesozoic-Cenozoic.
      
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The present paper discusses the various theories on the nature of the Mohorovi(?)i(?) discontinuity and the difficulties encountered by the phase-change hypothesis. By examining the velocity distribution data recently obtained by use of seismic body and surface waves, the following conclusions can be made: (1) The Mohorovi(?)i(?) discontinuity, either under the continents or the oceans, cannot be interpreted as a surface of phase transition. (2) The chemical composition of the upper mantle is not homogeneous...

The present paper discusses the various theories on the nature of the Mohorovi(?)i(?) discontinuity and the difficulties encountered by the phase-change hypothesis. By examining the velocity distribution data recently obtained by use of seismic body and surface waves, the following conclusions can be made: (1) The Mohorovi(?)i(?) discontinuity, either under the continents or the oceans, cannot be interpreted as a surface of phase transition. (2) The chemical composition of the upper mantle is not homogeneous in the vertical direction. The low-velocity layer in the upper mantle is probably "caused by a change in composition rather than by the temperature effects. (3) The top surface of the asthenospheric low-velocity layer is deeper under the oceans than under the continents. (4) The chemical composition of the upper mantle, according to the data of radioactive measurements, may be some mixtures of eclogites or other ultra-basic rocks, their change of velocity due to temperature effects being very small.

本文綜述了当前对莫霍界面性貭的学說,列举了相变学說所遇到的困难。根据新近地震面波和体波所获得有关地幔頂部速度分布的资料,进一步探討了莫霍界面的性貭,所得的結論为: (1)大陆和海洋的莫霍界面都不是相变面; (2)地幔頂部沿深度方向不可能由均勻物貭所組成,低速带的形成与物貭的組成有关; (3)大陆和海洋的地幔頂部,其差异主要在于低速带頂面位置的不同,大陆的較深,海洋的較浅; (4)根据放射性含量的測定,組成地幔頂部的物貭可能是榴輝岩与其他超基性岩石的混合物,其速度受溫度的影响不大。

An electromagnetic model of the reversal of the geomagnetic field, based on Bullard-Parker's dynamo theory of the origin of the main geomagnetic field is described. It is shown that a reversal of the geomagnetic field may arise in that case when the toroidal field in the earth's interior turns itself into the opposite direction. The authors further show that if a large enough "sudden fluctuation" is given to the earth's rotation by whatever means, then the electromagnetic interaction between the core and the...

An electromagnetic model of the reversal of the geomagnetic field, based on Bullard-Parker's dynamo theory of the origin of the main geomagnetic field is described. It is shown that a reversal of the geomagnetic field may arise in that case when the toroidal field in the earth's interior turns itself into the opposite direction. The authors further show that if a large enough "sudden fluctuation" is given to the earth's rotation by whatever means, then the electromagnetic interaction between the core and the mantle may give rise to a reversal of the toroidal field and consequently a reversal of the geomagnetic field. The calculation indicated that the "sudden fluctuation", which should be a decrease of the period of the Earth's rotation, is large enough only when its order of magnitude is greater than 10~2 ms. At the end of the work the time interval of each reversal is discussed. It is shown that each reversal can last 10~3—10~6 years.

本文是根据地球基本磁場起源的“发电机”理论而提出的地磁場倒转的电磁模型,认为地磁場的倒转是地核内部“环型”場反向的结果,若地球转速的“突然”扰动够大,则地幔与地核之间的电磁作用可以引起地球内部“环型”場的反向,从而实现地磁場的倒转,计算表明,这一扰动的性质是地球蒋动周期的减小,其数量级为10~2毫秒。文章的末尾计论了反向地磁場的维持问题,得出倒转磁場维持的时间间隔约为10~3年—10~6年。

In this article, theories of several types of surface waves and guided waves developed in recent years in seismology are reviewed. These include the small scaled surface waves in the sedimentary strata, the larger scaled crustal Rayleigh and Love waves and the world circling Mantle Rayleigh waves and G-waves. Different kinds of channel waves occurring in Gutenberg's low-velocity channels are also described. The use of dispersion curves of surface waves in the interpretation of the earth's crustal structure...

In this article, theories of several types of surface waves and guided waves developed in recent years in seismology are reviewed. These include the small scaled surface waves in the sedimentary strata, the larger scaled crustal Rayleigh and Love waves and the world circling Mantle Rayleigh waves and G-waves. Different kinds of channel waves occurring in Gutenberg's low-velocity channels are also described. The use of dispersion curves of surface waves in the interpretation of the earth's crustal structure is discussed with particular emphasis on the uniqueness of the solution.

本文讨论了近年来在地震学中发展的各种形式的面波,其中包括地球上部沉积层中的面波,地壳中的瑞利波和乐甫波,以及地幔中的瑞利波和G波.除此以外,还讨论了可能发生在古登堡的地壳低速层和地幔低速层中的各种导波.给出了计算面波频散关系的方法和它们在解释地壳构造时的应用,特别讨论了这个方法的解答的唯一性问题.

 
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