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  dominated
    They belong to medium porosity and medium permeability reservoirs, with porosity ranging from 15% to 20% and permeability ranging from 200×10-3 to 800×10-3μm2. Microscopic observation shows that the diagenesis is dominated by mechanical compaction in the process of burial, the grains are in point-point and point-line contact, and the compaction is low to medium.
    储层孔隙度为15%~20%,渗透率为200×10-3~800×10-3μm2,属于中孔中渗储层。 通过显微镜下观察发现,岩石在埋藏过程中以机械压实作用为主,颗粒主要为点、点—线接触,压实作用弱—中等;
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    Dissolution, which can occur in every diagenetic stage, is dominated by selective dissolution resulted from percolation of meteoric water in the early diagenetic stage and the whole rock dissolution resulted from CO2 and H2S fluids in the deep burial diagenetic stage.
    溶蚀作用发生在成岩作用的各个阶段,以早期大气淡水渗滤作用形成选择性溶蚀和深埋藏阶段含CO2和H2S流体对全岩的溶蚀作用为主
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    It has an abundant organic matter with 63. 2% of the samples containing more than 2% of organic carbon,50% of the samples bearing 0.2% chloroform asphalt "A" and 84% of the samples showing over 9 of potential hydrocarbon S1 + S2. All these prove the high quality of the organic matters while kerogen is dominated by Type Ⅰ and Type Ⅱ, with 50% and 43% respectively under the microscope.
    有机质丰度高,63.2%的样品有机碳含量大于2%,50%的样品氯仿沥青“A”含量大于0.2%,84%的样品生烃潜量大于9; 有机质类型好,干酪根以Ⅰ型和Ⅱ1型为主,镜下鉴定Ⅰ型占50%,Ⅱ1型占43%。
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    In the study area, the cations of Ca2+ and anions of HCO3-are dominated in pore water. The common types of the chemical component of pore water are HCO3-Ca, HCO3-Ca· Mg and HCO3· Cl-Ca.
    研究区内孔隙水中Ca2+、HCO3-在阳、阴离子中占有绝对优势,水化学类型以HCO3-Ca、HCO3-Ca·Mg、HCO3·Cl-Ca等为主.
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    The reservoir space of the sandbodies is dominated by secondary pore. Its. porosity ranges in 1.70%~16.30%, mainly in7%~12%, and permeability differs within 0.01—19.6 X10'3 u m2, and belongs to the kind of reservoir bed with lower porosity and lower permeability.
    砂体的储集空间类型以次生孔隙为主,孔隙度分布于1.7%~16.3%,主要分布在7%~12%之间,渗透率变化于0.01~19.6×10~(-3)μm~2,属于低孔低渗储层类型。
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    PUTTING PREVENTION FIRST AND MAKING A COMPREHENSIVE PRECAUTION AGAINST EARTHQUAKE HAZARD
    以预防为主,综合防御地震灾害
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    The results show that the content of organic carbon ranges from 0.15% to 0.75%,and the value of S1+S2 ranges from 0.25mg/g to 2.5mg/g,which displays its limited hydrocarbon-generating potential.
    实验结果表明,样品有机碳含量变化不大,w(TOC)为0.15%~0.75%,w(S1+S2)为(0.24~2.5)×10-3。 第四系气源岩中的有机质类型多以Ⅲ型有机质为主,少数为Ⅱ型,极少数为Ⅰ型。
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    Its discovery is the beginning of finding hardrock gold deposit in southern Tibet, and there will be many breakthroughs in hardrock gold and antimony deposits prospecting in the northern Himalayas with further work.
    但它的发现只是藏南岩金找矿突破的前奏,随着勘查研究工作的深入,北喜马拉雅构造带在岩金或以岩金为主的金锑找矿方面将会取得重大突破.
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    Core HD196A, recovered from the seafloor of the northeastern South China Sea, has large amount of pyrites.
    南海东北部的HD196A岩心中发现大量条状的自生黄铁矿,以中空或实心为主
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    with a negative value of δ(13C),illustrating that it was warm and wet.
    以前δ(13C)值偏负,气候温暖湿润,有机质以湖泊内源水生生物为主,δ(13C)值与湖泊生产力有关。
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  dominated
Our approach is rooted in a dominated ergodic theorem of Mart\'{\i}n--Reyes and de la Torre which assigns $T$ a canonical family of bilateral $A_{p}$ weight sequences.
      
Mixed finite element method for the convection-dominated diffusion problems with small parameterε
      
for Sobolev equations with convection-dominated term
      
for linear Sobolev equations with convection-dominated term is given.
      
Biocycle of nitrogen in a Cyclobalanopsis glauca-dominated evergreen broad-leaved forest in East China
      
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本文在綜合研究宁鎮山脈象山羣岩层縐构造形态基本特征、分布規律和形成机理的基础上,专門論述了海西印支裡縐构造的基底断裂如何控制燕山盖层褶縐形成的具体表現方式,論証了燕山运动以块断运动为主的构造性貭,为进一步研究下揚子地区岩漿活动和成矿作用的空間分布規律提供了构造方面的依据。

The Hsingtai Earthquake in March 1966 was an earthquake swarm. Five strong shocks with magnitudes of 6.0 or greater occurred in the strongly subsiding Shulu (束鹿) Graben of the Hsingtai-Hengshui (邢台-衡水) Upheaval. The results of le-velling survey show significant subsidence in the graben area before, during and after the seismic active periods. The results of the geodetic survey suggest a dislo-cation model of the tension-torsion fault type, mainly of right lateral horizontal offset, accompanied by movements of...

The Hsingtai Earthquake in March 1966 was an earthquake swarm. Five strong shocks with magnitudes of 6.0 or greater occurred in the strongly subsiding Shulu (束鹿) Graben of the Hsingtai-Hengshui (邢台-衡水) Upheaval. The results of le-velling survey show significant subsidence in the graben area before, during and after the seismic active periods. The results of the geodetic survey suggest a dislo-cation model of the tension-torsion fault type, mainly of right lateral horizontal offset, accompanied by movements of horizontal extension and vertical subsidence for the Hsingtai Earthquake. The repeated levellings during the intervals between the two main shocks and other strong shocks reveal that strong subsidence took place in the epicentral area of strong shocks while in area of probable future shocks conspi-cuous uplift was observed. The vertical crustal deformation before and after the Hsingtai Earthquake has probably 4 stages, characterized in general by deformation in the same direction.

1966年3月发生的邢台地震属震群型,五次大于6级的强震基本上都发生在邢衡隆起区中强烈下降的束鹿断陷内。水准测量结果说明,在地震前、地震时及地震后,断陷区都有明显的下降运动。大地测量结果证明,邢台地震是一个右旋型水平错动为主、并伴有水平方向的引张和垂直方向的下降运动,呈现出张扭性断层错动模型。在二次主震或强震的中间,水准复测结果说明:在已发生强震的震中一带强烈下沉,而可能的未来强震区有较明显的上升。邢台地震在地面垂直运动方面,地震前后大致存在四个地形变阶段,并在总体上具有同向地形变特征。

A strong earthquake of magnitude M=7.7 occurred at Tonghai of Yunnan Pro-vince on Jan. 5, 1970. Repeated levelling surveys have been made at the seismic areas before and after the earthquake. In the interval of ten years before the earth-quake, a relative subsiding area was found at Quxi (曲溪) basin, along the levelling traverses in which the south side of the Qujiang (曲江) fault was sinking as com-pared with the north side. During the earthquake, the deformation in the vertical direction was more strengthened...

A strong earthquake of magnitude M=7.7 occurred at Tonghai of Yunnan Pro-vince on Jan. 5, 1970. Repeated levelling surveys have been made at the seismic areas before and after the earthquake. In the interval of ten years before the earth-quake, a relative subsiding area was found at Quxi (曲溪) basin, along the levelling traverses in which the south side of the Qujiang (曲江) fault was sinking as com-pared with the north side. During the earthquake, the deformation in the vertical direction was more strengthened than in pre-earthquake time. However, in the hori-zontal direction it appeared a right lateral horizontal offset on the fault line. The relative amount of the dislocation was about 2 meters. Consequently, the horizontal movement is the predominant crustal deformation during the Tonghai earthquake. The crust deformation .before and after the earthquake indicates that the movement of the Qujiang fault is of dextral type with its north side upthrusted.

1970年1月5日在我国云南省通海发生了一次7.7级强烈地震。在该震区地震前后做了一些大地测量的复测工作。地震前十年期间沿水准测线在曲溪盆地处产生了一个相对下沉区,跨曲江断裂处产生南盘相对于北盘下降的现象。地震时的地面垂直形变发展了地震前的特征,形成了更强烈的差异运动。地震时的地面水平形变表现为断裂两侧的水平顺扭的错动,相对错动量为2米。即通海地震的地形变是以水平错扭为主的。地震前后的地形变现象,表明了通海地震时曲江断裂的应力活动方式为:以顺时针水平错动为主兼有北盘相对南盘上逆的斜冲。

 
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