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   sea water environment 的翻译结果: 查询用时:0.168秒
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sea water environment     
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  海水环境
     Study on Corrosion Behavior of LY12CZ Aluminium Alloy in Simulated Atmosphere and Seawater Environment
     LY12CZ铝合金在模拟大气及海水环境中腐蚀行为的研究
短句来源
     there exists the fatigue limit in atmosphere environment,which is around 90 MPa,and there is no fatigue limit in simulated seawater environment;
     压铸镁合金AZ91HP在大气环境中存在疲劳极限,约为90MPa,而在模拟海水环境中不存在疲劳极限;
短句来源
     Study on the durability of the steel-concrete pile in the seawater environment by numerical modeling
     海水环境中钢筋混凝土桥桩耐久性数值模拟研究
短句来源
     Behaviors of heavy metals (Pb, Zn, Cd and Cu) from polluted sediments (False Creek, Canada)in seawater environment were investigated in the marine ecosystem enclosure experiment (MEEE).
     利用围隔式生态实验装置研究了加拿大False河口污染沉积物中重金属Pb、Zn、Cd、Cu在海水环境中的行为。
短句来源
     In addition, the behaviours of heavy metals Pb, Zn, Cd and Cu in the polluted sediments from above littoral wetland in the seawater environment were studied by making mesocosm experiment.
     另外,利用围隔式生态实验装置研究了该滨海湿地区域污染沉积物中重金属Pb,Zn,Cd,Cu在海水环境中的行为。
短句来源
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  海水
     Study on Corrosion Behavior of LY12CZ Aluminium Alloy in Simulated Atmosphere and Seawater Environment
     LY12CZ铝合金在模拟大气及海水环境中腐蚀行为的研究
短句来源
     there exists the fatigue limit in atmosphere environment,which is around 90 MPa,and there is no fatigue limit in simulated seawater environment;
     压铸镁合金AZ91HP在大气环境中存在疲劳极限,约为90MPa,而在模拟海水环境中不存在疲劳极限;
短句来源
     Effect of Scandium on the Corrosion Behavior of Al-6Mg-Zr Alloy in Artificial Seawater Environment
     Sc对Al-6Mg-Zr铝合金在模拟海水中耐蚀性能的影响研究
短句来源
     Study on the durability of the steel-concrete pile in the seawater environment by numerical modeling
     海水环境中钢筋混凝土桥桩耐久性数值模拟研究
短句来源
     STEEL CORROSION IN SIMULATED BIOFILM ENVIRONMENT IN SEAWATER (Ⅰ) INFLUENCE OF SIMULATED BIOFILM ON METAL CORROSION IN SEAWATER ENVIRONMENT
     典型金属材料在模拟海水微生物环境中的腐蚀行为(Ⅰ)模拟生物膜对钢在海水中腐蚀性能影响
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  海域水环境
     An Application of the Nemerow Pollution Index in the Quality Assessment of the Seawater Environment in the Vicinity of Terrestrial Drains
     内梅罗污染指数法在排污口邻近海域水环境质量评价中的应用
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  “sea water environment”译为未确定词的双语例句
     Sea water environment copper requirement of egg hatching and naupliar metamorphosis of Peaneus chinensis
     Sea water environment copper requirement of egg hatching and naupliar metamorphosis of Peaneus chinensis
短句来源
     Research on Harmonious Development of Alongshore Sea Water Environment Improvement and City Social Economy of Dalian
     大连市近岸海域水环境改善与城市社会经济协调发展
短句来源
     The measures which spur Dalian city sustainable development of economy and alongshore sea water environment to higher administrative level are in the last of the paper.
     最后提出了大连市近岸海域水环境与社会经济协调发展措施。
短句来源
     Study on Control Methods Against Microorganism Attachment to the Surface of Passive Metals in Seawater Environment
     海洋环境中钝性金属表面微生物附着的控制方法研究
短句来源
     Study on the Durability of the Steel-concrete Pile in the Sea water Environment by Numerical Modeling Method in BinHai Area
     滨海地区海水环境中钢筋混凝土桥桩耐久性的数值模拟研究
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  sea water environment
The corrosion rate in an artificial sea water environment of composites containing 4vol% of metallic glass decreased from 70×10-3 to 50×10-3 mgdm-2 per day due to re-pressing and re-sintering.
      
The corrosion rate in an artificial sea water environment decreased linearly with the volume fraction of dispersoid.
      
Reference materials for monitoring nutrients in sea water environment
      
Our test data enclosed within indicates the performance of commonly used products that are being utilized in a sea water environment.
      
Data in sea water environment are more difficult to find.
      


This paper attempts to illustrate the law of corrosion fatigue with pa-rameters of fatigue characteristics of test piece under sea water corrosion. A method of calculating corrosion fatigue life of the semi-submersible platform column is proposed. Applying the nth dimensional Airy wave theory, the pattern of random wave surface elevation is determined from the randomness of initial value. Analysis of the dynamic response of semisubmersible platform is made and a formula for calculating the coefficient of horizontal...

This paper attempts to illustrate the law of corrosion fatigue with pa-rameters of fatigue characteristics of test piece under sea water corrosion. A method of calculating corrosion fatigue life of the semi-submersible platform column is proposed. Applying the nth dimensional Airy wave theory, the pattern of random wave surface elevation is determined from the randomness of initial value. Analysis of the dynamic response of semisubmersible platform is made and a formula for calculating the coefficient of horizontal restoration of the mooring system is derived. The proposed method of calculating the fatigue life is to calculate the stress range and stres ratio of the stress cycle directly from the frequency spectrum of random stress. Some improvement of the Paris formula for determining the coefficient of fatigue load, fatigue frequency etc. is suggested through test of 16 Mn steel(national standard)in sea water environment, and prediction of corrosion fatigue life of semi-submersible platform column in South China Sea is made.

本文的目的是通过试件在海水腐蚀环境下有关疲劳特征的一些参数来描述材料的腐蚀疲劳规律。同时,以这些规律为依据,提出一个较为完整可靠的腐蚀疲劳寿命的计算方法,此法直接从随机应力频率谱出发得出应力循环关于应力幅和应力比的两参数计数的计算方法,并通过实验对国标16Mn钢在海水腐蚀环境下与疲劳特征有关的一些参数——疲劳载荷系数、疲劳循环比系数及疲劳频率系数的测定而提出对Paris公式的改进。文章还以Miner线性累积损伤律为依据对在中国南海海况下的半潜式平台立柱的腐蚀疲劳寿命进行了理论预测。

The Meishucun section has been commonly favored as the best candidate for the global stratotypeof the Precambrian─Cambrian boundary. Silicon isotope investigation of the section is first undertakenin this study,and two positive and one nagative anomalies of δ ̄(30)Si have been found.The positiveanomaly of the δ ̄(30)Si is shown in siliceous bands and siliceous concretion,which is the characteristics ofthe siliceous rocks in shallow-Sea cabonate rock sequence. The nagative anomaly is found in the sectorbetween...

The Meishucun section has been commonly favored as the best candidate for the global stratotypeof the Precambrian─Cambrian boundary. Silicon isotope investigation of the section is first undertakenin this study,and two positive and one nagative anomalies of δ ̄(30)Si have been found.The positiveanomaly of the δ ̄(30)Si is shown in siliceous bands and siliceous concretion,which is the characteristics ofthe siliceous rocks in shallow-Sea cabonate rock sequence. The nagative anomaly is found in the sectorbetween Marker B and C,where the δ ̄(30)Si values of dolomitic phosphatic beds from beds 7 range from─0.5‰ to─0.2‰, averaging─0.4‰,the δ ̄(30)Si value of siliceous dolomite from Dahai Member is─2‰, and the δ ̄(30)Si of siliceus bands in same atrata are─0.8‰ and 0.0‰ .Ther δ ̄(30)Si values areobviously lower than same rocks in undelaying beds and from other area, these results may beexplained by their genesis of sea floor exhalation The δ ̄(30)Si values (0.0‰ to 0.1‰)of“boundaryclay band”near Marker C is obviously different from those of sedimentary clay, but close to those ofgranitoid.It is su88ested that“the boundary clay band”may be a fast alteration product of acidic tuffin sea+water environment.Two similar big nagative anomalies of δ ̄(13)C and δ ̄(18)O are found inphosphatic beds near Marker B and C,they may be caused by biological action and have nothing to dowith cataclysm event.

云南梅树村前寒武系—寒武系界线剖面是研究前寒武系—寒武系界线层型最重要的国际候选剖面之一。本文首次系统地研究了硅同位素在剖面中的变化规律;指出在“B点”—“C点”之间有海底喷气活动存在,“界线粘土层”为火山成因。“C点”附近点δ ̄(13)C、δ ̄(18)O负异常与大量生物活动有关,而非“灾变”所致。

The Palaeo-Yangtze River had already been as nearly large as its present scale in the end of Late Pliocene. During the early period of Early Pleistocene (after Olduvai subchron), when a low sea level remained for a longer term in the Yellow Sea Shelf area, in the central part of the sea were formed thicker fluvilly deposited sediments, which provided the oldest evidence ever revealed for the traces of Quaternary Palaeo-Yangtze River in the South Yellow Sea. In consequence of marine transgression proceeding towards...

The Palaeo-Yangtze River had already been as nearly large as its present scale in the end of Late Pliocene. During the early period of Early Pleistocene (after Olduvai subchron), when a low sea level remained for a longer term in the Yellow Sea Shelf area, in the central part of the sea were formed thicker fluvilly deposited sediments, which provided the oldest evidence ever revealed for the traces of Quaternary Palaeo-Yangtze River in the South Yellow Sea. In consequence of marine transgression proceeding towards Eastern China Shelves during the late period of Early Pleistocene (from the beginning of Jaramillo subchron to the end of Matuyama Chron), the delta deposition with thicker sediments occurred geographically in the centre of the sea. The early Early Pleistocene fluvial sediments are covered by the transgressive delta of late Early Pleistocene. The interval 79.82-91.33m from Borehole QC2 collected on the South Yellow Sea Shelf, located at 122°16'E and 34°18'N and under a water depth of 49.05m, records this palaeo-deltaic sedimentary sequence. Overlain by fluvial deposits, the sequence can be easily recognized to consist of 4 beds labelled with letters a,b,c and d from bottom to top: The bed d, belonging to interdistributary bay sediments, comprises silty clay interbedded with laminated silt and lag deposits in bottom, as well as a great amount of foraminiferas showing monotonic species and very low diversity. The bed c, deposited in distributary riyer mouth bars, is dominated by smallscale, low-angle cross-bedded and, locally, ripple bedded, medium, to fine sands burrowed by livings, not rich in foraminiferas which are of shallow coastal origin and mostly wore off and in low diversity; additionally, there are mollusks analogous to those in modern intertidal zone and fresh water, typical of sea water environment mixing with rivers. The bed b, resulted from distributary channels and containing tabular-cross bedded sands, shows 4 evident upwards-fining sedimentary cycles representing subaqueous fluvial multicycle aggrations from channels to point bar to flood lands, dominant foraminifera Ammonia becarii var. distributing interrupedly in the layer.The bed a, also attributable to the deposition of river mouth bars and seperated from the underlying strata by a erosive surface, is composed of low-angle crossbedded fine sands and silty clay, in which are found 3 turbidite layers generated from rapid sedimentary events. The above-mentioned beds a,b,c and d make up a deltafront sedimentary sequence, indicative of subenvironmental changes from river mouth bars through distributary channels to river mouth bars and finally to distributary bays. The bed a overlies the deposits formed in a branching channel plain, instead of the prodelta sediments as in normal progressive delta sequences. Studies in palaeomagnetism demonstrate that the delta-front deposits are between the base of Jaramillo subchron and the B/M boundary, representing a span of 0.24 Ma (from 0.97Ma B. P.-0.73 Ma B.P.). Study of the grain size characteristics is helpful to recognizing the Yangtze River Delta. The sediments of river mouth bars are similar in grain size, with mean grain size of 2.5-4.4φb, poorly or middlingly sorted,and positively skewed; the probability curve is characterized by two saltation subpopulations, both intersecting between 2.25-2.8φ, which may be interpreted as scouring/reflucence bountary point, an important mark indicating bimodel currents reworking of sediments and representing bidirectional interaction among rivers, tidal currents and wave in the river mouth area. A high content of suspended load in the river mouth bars points to the character of distal river mouth bars. The distributary channel subfacies also shows two saltation subpopulations in the probability curve, because it was near the river mouths and frequently affected by tidal currents. The interdistributary bay deposits are dominated by suspeded load,intercalated with a number of silty laminations due to disturbance of waves and shore currents. From the content and

早更新世晚期(加拉米洛亚时开始到松山时结束),中国东部陆架发生海侵。随着海侵的推进,在南黄海中部出现了较厚的三角洲沉积。在沉积层的垂直序列上,发现了分流河口沙坝、分流河道和分流河口间湾等三角洲前缘沉积亚相的交替。这是一个海侵序列的三角洲层序。在海侵进程中三角洲的进积速率与海水进侵速率基本平衡。南黄海晚松山时古长江三角洲的发现,从一个侧面证明了浙闽隆起带在早期第四纪仍然是继承晚第三纪的一个构造上的隆起及地貌上的屏障,它制约着古长江流向东北方向。

 
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