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hydrate
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  水合物
    Seismic Data Processing and Identifying for Gas Hydrate Offshore Southwest Taiwan
    台湾西南海域地震数据处理及天然气水合物识别
短句来源
    PREDICTION OF THE FORMATION CONDITIONS OF HYDRATE IN POROUS MEDIA
    地层多孔介质中水合物生成条件的预测
短句来源
    Identity Method of Gas Hydrate in the Seismic Profile
    地震剖面上的天然气水合物识别方法
短句来源
    Identification of gas hydrate with seismic method
    利用地震方法识别天然气水合物
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    Seismic study of gas hydrate BSR in the Okinawa Trough
    冲绳海槽天然气水合物BSR的地震研究
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  “hydrate”译为未确定词的双语例句
    Soluble lead sulfide can be extracted from the residue by 10% hydrogen peroxide, 15% ammonium acetate and 5% acetyl hydrate.
    用10%过氧化氢—5%醋酸—15%醋酸铵浸取上述残渣,可浸取溶解硫化态铅;
短句来源
    A part of interlayer hydroxyl-aluminum in 1.4 nm intergrade minerals could be chelated out from mineral interlayers by sodium citrate or sodium acetrate, then the hydrate ions of potassium, calcium and magnesium could enter the layers, and this made 1.4 nm intergrade minerals change into vermiculites in the incubated matrix soils.
    土壤经有机酸盐溶液培养后,其部分1.4nm过渡矿物的层间羟基铝被柠檬酸钠或乙酸钠络合出层间,随后钾、钙、镁等的水合阳离子进入,使之转化为蛭石;
短句来源
    Boron Hydrate, an Important Immigrating Form in Boron Ore Formation
    硼氢化物是形成硼矿床的重要迁移形式
短句来源
    MASSIVE DISSOCIATION OF GAS HYDRATE DURING OCEANIC ANOXIA AS A CAUSE OF MASS EXTINCTION AT THE END OF PERMIAN
    华南二叠纪末缺氧海水中的有毒气体与生物集群绝灭
短句来源
    The aim of this study is to establish new thermodynamic models to predict gas-liquid equilibrium of water-gases-salts fluid systems and methane hydrate phase equilibrium at low temperatures.
    更重要的是,该方程能够精确预测CH4-H2O体系在273-383 K,0-1000 bar的温压范围内的气液相平衡,预测的液相组成平均误差小于4%,明显优于前人的模型。
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  hydrate
2,5-Bihydrazino-1,3,4-thiadiazole (2) was synthesized by condensation of 2,5-bimercapto-1,3,4-thiadiazole (1) with hydrazine hydrate, and compound 2 reacted with acyl chloride to give 2,5-biacylhydrazino-1,3,4-thiadiazole derivatives (3a-3e).
      
Gas hydrate is a recently-found new source of energy that mostly exists in marine sediments.
      
In recent years, we have conducted gas hydrate exploration in the South China Sea.
      
The Xisha trough, one of the promising target areas for gas hydrate, is located in the northern margin of the South China Sea, adjacent to several large oil and gas fields.
      
These geochemical anomalies are quite similar to those found in gas hydrate locations in the world such as the Blake Ridge and may be related to the formation and dissociation of gas hydrates.
      
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Scawtite, a rare carbonated calcium silicate hydrate mineral, was discovered at the Fushan mine, Hebei Province in 1982. It occurs in cavities of the magnesian skarn near the contact zone, coexisting with calcite, scolecite, tobermorite, gyrolite and thaumasite. Its colorless and transparent crystals look like rectangular tablets with such forms as{100}, {010}, {101},{120}, {201}, {301}, {211},{311} and {611}. Its optical constants are Ng=1. 629, Nm=1. 615, Np=1. 609, (+)2V = 67°, c∧Ng=30~35°, and its...

Scawtite, a rare carbonated calcium silicate hydrate mineral, was discovered at the Fushan mine, Hebei Province in 1982. It occurs in cavities of the magnesian skarn near the contact zone, coexisting with calcite, scolecite, tobermorite, gyrolite and thaumasite. Its colorless and transparent crystals look like rectangular tablets with such forms as{100}, {010}, {101},{120}, {201}, {301}, {211},{311} and {611}. Its optical constants are Ng=1. 629, Nm=1. 615, Np=1. 609, (+)2V = 67°, c∧Ng=30~35°, and its specific gravity is 2.76.

1982年笔者在河北符山矿镁矽卡岩的裂隙中发现了碳硅钙石,具完好的板状晶体,发育有{100},{101},{120},{201}等单形。Ng=1.628,Nm=1.615,Np=1.609,(+)2V=67°;比重为2.76;空间群I2/m;a_o=10.1206,b_o=15.2058,c_o=6.6345;β=100°37′;Z=2.结构式为(Ca_(7.03)Fe_(0.01)Mn_(0.01)K_(0.002))〔Si_6O_(18)〕_(0.98)(CO_3)_1.06·2.1 H_2O,主要X—射线衍射线为3.02(100),2.99(80),2.78(35),2.49(40),1.896(40)。红外光谱有21个吸收带,CO_3群的伸缩振动谱带有明显分裂。DTA曲线表现有240℃及757℃两个吸热谷及895℃的放热峰。该地产出的碳硅钙石是矽卡岩晚期的低温热液矿物,与方解石,钙沸石,雪硅钙石,吉水硅钙石和硅灰石产膏等共生。

Studies of 61 ferro-manganese nodule samples from the central Pacific Ocean have shown that manganese minerals underwent progressive and degenerative facies changes and secondary enrichment of Mn, Ni, Cu. Progressive facies changes mean that with intensifying diagenesis (following Eh changes from high to low) the nodules underwent such facies changes as from primary δ-MnO_2 to zoned and laminated birnessite and todorokite to massive and scaly aggregates of todorokite. In this system birnessite is the transition...

Studies of 61 ferro-manganese nodule samples from the central Pacific Ocean have shown that manganese minerals underwent progressive and degenerative facies changes and secondary enrichment of Mn, Ni, Cu. Progressive facies changes mean that with intensifying diagenesis (following Eh changes from high to low) the nodules underwent such facies changes as from primary δ-MnO_2 to zoned and laminated birnessite and todorokite to massive and scaly aggregates of todorokite. In this system birnessite is the transition member involved in facies changes and todorokite is the product of facies change at higher stage. Degenerative facies change: under the action of sea floor water (poor in Mn, Ni, Cu but rich in Fe), Mn, Ni and Cu in the primary δ-MnO_2 were partly carried out by water, followed by precipitation of Fe, thereby forming feruginous δ-MnO_2 or amorphous ferro-manganese hydrates. Secondary enrichment of Mn, Ni and Cu: in the process of recrystallization or in the time period from diagenesis to de uterogenesls of nodules. It is not only reflected in changes from the primary δ-MnO_2 to zoned and laminated birnessite and todorokite to masslye scaly aggregates of todorokite, but also in the chemical composition of δ-MnO_2 formed at early to late stages.

本文通过对太平洋中部61个铁锰结核的研究,发现在结核形成后,发生了渐近相变、退化相变和Mn、Ni、Cu的次生富集作用。渐近相变是,随着结核成岩作用的增强(伴随着氧化还原电位由高到低的变化),锰矿物发生了由原生δ-MnO_2→环带状、薄层状钠水锰矿和钡镁锰矿→块状磷片状钡镁锰矿集合体的相变。在这一相变系统中钠水锰矿是相变的过渡阶段,钡镁锰矿是相变的高级阶段。退化相变:具层纹构造的原生δ-MnO_2在底层水(可能贫Mn、Ni、Cu而富Fe)的作用下,其中一部分Mn、Ni、Cu等被水带走而沉淀下Fe,形成新的富Fe、δ-MnO_2或非晶质水合铁锰氧化物。Mn、Ni、Cu的次生富集作用。结核在重结晶作用或由结核成岩作用到成岩后生作用过程中均发生了Mn、Ni、Cu的次生富集作用。它不仅表现在由原生δ-MnO_2→环带状钠水锰矿和钡镁锰矿→块状钡镁锰矿过程中,而且还表现在由早期到后期形成的δ-MnO_2成分上。

Non-hydrocarbon constituents of natural gas are the resoures extracted non-hydrocar-bon gases,as well as the important indexes as being prospected for hydrocarbon and re-searched in nature.This paper make a systematic study on developments in Geochemistry(Occurrence,distribution,origin,isotopic geochemistry,etc.)of non-hydrocarbon con-stituents (CO_2,H_2S,N_2,He,Ar,N_2,H_2O and Hg)of natural gas.Finally,the author chartsthe fields needed strengthen study in China.(1)Thermal dynamics of the non-hydrocarbon constituents...

Non-hydrocarbon constituents of natural gas are the resoures extracted non-hydrocar-bon gases,as well as the important indexes as being prospected for hydrocarbon and re-searched in nature.This paper make a systematic study on developments in Geochemistry(Occurrence,distribution,origin,isotopic geochemistry,etc.)of non-hydrocarbon con-stituents (CO_2,H_2S,N_2,He,Ar,N_2,H_2O and Hg)of natural gas.Finally,the author chartsthe fields needed strengthen study in China.(1)Thermal dynamics of the non-hydrocarbon constituents in the Earth fluid system;(2)Contribution from the gas to the metal deposits;(3)Relntion between non-hydrocarbon gases and petroleum;(4)Geological geochemistry of non-hydrocarbon constituents;(5)Global climate change and outgassing of solid Earth;(6)Relrirtionship between methane hydrate in shallow crust and non-hydrocarbongases contents in the atmosphere.

综述了天然气中非烃组分(C0_2、H_2S、N_2、He、Ar、H_2、H_2O和Hg等)地球化学(地质产状、分布规律、成因机理和同位素地球化学特征)研究现状和发展趋势,指出了我国在这方面研究的薄弱之处以及需加强的领域。

 
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