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tidal current scour     
相关语句
  潮流冲刷
     There are six types of the underwater dynamic morphology in Fangcheng Bay: intertidal shoal, tidal current scour, underwater entrance bar, underwater sandy mouth, underwater slope, submarine plain.
     其中,水下动力地貌有6种类型:潮间浅滩、潮流冲刷深槽、水下拦门沙坝、水下沙嘴、水下岸坡、海底平原。
短句来源
     Therefore,the seabed soil failure due to the tidal current scour in the cable route area may occur to affect the safety of submarine cable buried in the seabed soil.
     路由区海底土会因潮流冲刷作用而发生失稳破坏,影响埋设在海底土中海缆的安全。
短句来源
  潮流冲刷
     There are six types of the underwater dynamic morphology in Fangcheng Bay: intertidal shoal, tidal current scour, underwater entrance bar, underwater sandy mouth, underwater slope, submarine plain.
     其中,水下动力地貌有6种类型:潮间浅滩、潮流冲刷深槽、水下拦门沙坝、水下沙嘴、水下岸坡、海底平原。
短句来源
     Therefore,the seabed soil failure due to the tidal current scour in the cable route area may occur to affect the safety of submarine cable buried in the seabed soil.
     路由区海底土会因潮流冲刷作用而发生失稳破坏,影响埋设在海底土中海缆的安全。
短句来源
  相似匹配句对
     Visualization of calculation of tidal current
     潮流计算结果的可视化
短句来源
     Ocean Current and Tidal Current Analysis
     海流与潮流分析
短句来源
     DISPLACEMENT CURRENT
     位移电流
短句来源
     Tidal Energy
     潮汐能
短句来源
     The yellow scour of piglet and
     经果表明:仔猪黄痢病和水肿病的发病率分别减少1401%和617%,试验组提高仔猪成活率2146%,与对照组比较差异显著。
短句来源
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  tidal current scour
Deep channels in the south appear to be formed by tidal current scour.
      


An integrated and typical dynamic geomorphologic system of tidal bed forms has developed in the east part of the Bobal Sea. It consists of the Laotieshan Channel, the Liaodong Shoal and the Bozhong Shoal. The first is a tidal current scour region and the latter two are tidal current depositional regions. The maximum tidal current velocity is up to 5 knots in the Laotieshan Channel where strong erosion occurs. In the Liaodong Shoal the maximum tidal current velocity is...

An integrated and typical dynamic geomorphologic system of tidal bed forms has developed in the east part of the Bobal Sea. It consists of the Laotieshan Channel, the Liaodong Shoal and the Bozhong Shoal. The first is a tidal current scour region and the latter two are tidal current depositional regions. The maximum tidal current velocity is up to 5 knots in the Laotieshan Channel where strong erosion occurs. In the Liaodong Shoal the maximum tidal current velocity is 1. 3~2. 3 knots and the absolute value of M2 tidal current ellipticity is less than 0. 4, which indicatis that the reciprocating tidal currents in throng enough for forming tidal salld ridges. In the Bozhong Shoal the maximum tidal velocity is 1. 2~1. 6 knots and the absolute value of M2 tidal current ellipticity is larger than 0. 4, which indicates that rotation of tidal currents increases so as to form tidal sand sheets. The small-scale bedforms Surveyed in detail in the area and shown in the side scan sonar mosaic are subaqueous dunes, sand ribbons, comet-tail marks and scour furrows, which indicates that both the sand ridges and sand sheet are still under the action of tidal current processes at present. The net direction of sediment transportation within this system is from the channel to the two shoals, whereas that in the detailed survey area is from south to north.

渤海东部发育了典型的潮流动力地貌体系,它由老铁山水道冲刷槽、辽东浅滩沙脊和渤中浅滩沙席三者组成。前者为潮流侵蚀区,后两者为潮流沉积区。老铁山水道表层最大流速可达5kn,潮流强烈侵蚀海底;辽东浅滩表层最大流速1.3~2.3kn,M2分潮椭率绝对值小于0.4,潮流往复性强,形成潮流沙脊;渤中浅滩表层最大流速为1.2~1.6kn,M2分期椭率绝对值大于0.4,潮流旋转性强,形成潮流沙席。6号沙脊南端详测区的旁侧声纳镶嵌日显示的微地貌形态有海底沙丘、沙条、彗星尾标志和冲刷沟,表明沙席和沙脊均是现代潮流作用形成的底形。该潮流动力地貌体系中,净沉积物搬运从老铁山水道至两潮流浅滩;在详测区净沉积物搬运从南向北。

The hydraulic dynamic conditioin, morphological feature and sedimental composition from Fangcheng Bay were discussed. There are six types of the underwater dynamic morphology in Fangcheng Bay: intertidal shoal, tidal current scour, underwater entrance bar, underwater sandy mouth, underwater slope, submarine plain. The surface sediment possess six types: sandy gravel, coarse sand, coarse middle sand,middle fine sand, fine sand,silty clay. The heavy minerals are named as ilmenite-zircon-tourmaline assemblage...

The hydraulic dynamic conditioin, morphological feature and sedimental composition from Fangcheng Bay were discussed. There are six types of the underwater dynamic morphology in Fangcheng Bay: intertidal shoal, tidal current scour, underwater entrance bar, underwater sandy mouth, underwater slope, submarine plain. The surface sediment possess six types: sandy gravel, coarse sand, coarse middle sand,middle fine sand, fine sand,silty clay. The heavy minerals are named as ilmenite-zircon-tourmaline assemblage in the sediment. Foraminiferan and ostracod are abundant in the sediment. Its four assemblage zones can be divided as follows: Haplophragmoides cannariensis assemblage zone, distributed in river mouth forked course; Ammonia beccarii var. -H.cannariensis assemblage zone intertidal zone; A. baccarii var. -Elphidium advenum assemblage zone in underwater slope; A.beccarii var. -Schackoinella globosa- E.advenum assemblage zone in shallow sea.

讨论防城湾水动力条件、地貌特征及沉积物组成。其中,水下动力地貌有6种类型:潮间浅滩、潮流冲刷深槽、水下拦门沙坝、水下沙嘴、水下岸坡、海底平原。表层沉积物类型有6种:砂砾、粗砂、粗中砂、中细砂、细砂、粉砂质粘土。沉积物中重矿物组合为钛铁矿—锆石—电气石。沉积物中有孔虫、介形虫,划分为4个组合带:卡纳利拟单栏虫组合;毕克卷转虫变种组合;毕克卷转虫—异地希望虫组合;毕克卷转虫变种—球室刺房虫—异地希望虫组合

The distributions of seabed soil and the tidal current characteristics in the Beihai-Lingao section submarine cable route area in the Qiongzhou Channel are acquired by analyzing the field survey and indoor test results,and the possibilities of soil mass failure in the cable route area due to 10 year and 50 year return period tidal currents are calculated and analyzed.It is shown from the calculated results that the average thre-shold velocity for sandy soil(23.2 to 58.9 cm/s) is lower than the predicted 10 year(75.2...

The distributions of seabed soil and the tidal current characteristics in the Beihai-Lingao section submarine cable route area in the Qiongzhou Channel are acquired by analyzing the field survey and indoor test results,and the possibilities of soil mass failure in the cable route area due to 10 year and 50 year return period tidal currents are calculated and analyzed.It is shown from the calculated results that the average thre-shold velocity for sandy soil(23.2 to 58.9 cm/s) is lower than the predicted 10 year(75.2 to 93.8 cm/s) and 50 year(85.4 to 113.7 cm/s) return period current velocities,and the average threshold velocity for cohesive soil(64.8 cm/s) is also lower than the predicted 10 year(76.2 cm/s) and 50 year(87.4 cm/s) return period current velocities.Therefore,the seabed soil failure due to the tidal current scour in the cable route area may occur to affect the safety of submarine cable buried in the seabed soil.In addition,it is shown from the calculated results that the effect of tidal current on sandy seabed soil is larger than that on cohesive seabed soil.

通过野外勘察和室内试验分析结果,了解琼州海峡北海—临高段海缆路由区浅层海底土分布特征和路由区及其附近海区的潮流特征,利用计算的方法分析了10 a和50 a一遇的潮流对海缆路由区冲刷破坏的可能性。结果发现,在琼州海峡海缆路由区海底砂性土平均起动流速(23.2~58.9 cm/s)小于10 a一遇(75.2~93.8 cm/s)和50 a一遇(85.4~113.7 cm/s)的预测流速;海底粘性土的平均起动流速(64.8 cm/s)也小于10 a一遇(76.2 cm/s)和50 a一遇(87.4 cm/s)的预测流速。路由区海底土会因潮流冲刷作用而发生失稳破坏,影响埋设在海底土中海缆的安全。同时,结果还发现潮流对砂性海底土的影响大于对粘性海底土的影响。

 
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