The atolls are composed of live coral reefs and sand bars, situated atop a submarine ridge 960 kilometers long that rises abruptly from the depths of the Indian Ocean and runs from north to south.
环礁由活着的珊瑚礁和沙洲组成，生长在印度洋深处从南到北长贯960公里的陡峭海脊之上。
The towering ridge of a sand dune in the Arabian Desert points to the afternoon sun.
阿拉伯沙漠上一座高耸的沙丘脊指向着午后的落日。
This crescent-shaped ridge of sand dune in Oman was formed by strong trade winds that form a smooth hill facing the wind (left) and concave slipface on the back.
阿曼一座新月形的沙丘脊由强信风吹成，在迎风的方向（图左侧）形成一面平缓的凸破，在背风面形成凹坡。
The drilling of lower channel sand bodies along the ridge of the nose-shaped uplift is successful, making Ge 7 to Hongtai 2 a continuous oil/gas-bearing area.
沿鼻隆脊部钻探低部位河道砂体获得成功，实现了疙7-红台2号含油气区的复合连片。
There is a huge tidal sand system which is composed of the old sand body distributing in the coastal plain and the radial sand ridge distributing in south Huanghai Sea.
苏北陆区古潮成沙体和海域辐射沙洲共同构成了统一的苏北南黄海潮成沙洲体系。
Planting sand ridge shape, there are gaps oxidation silicon blocking performance. Used for automobile, electronics paint surface polishing.
植砂棱形状氧化硅，有空隙有阻塞性能。用于汽车、电子油漆表面抛光。
The literatures on the formation and development mechanism of feather-shaped sand ridge are scarce in recent ten years.
有关羽毛状沙垄形成发育机理研究，近几十年来进展甚微。
Based on the previous research results related, the relationships between sand-ridge resistance, total resistance, ice-period resistance and water flow intensity are established respectively.
在前人研究的基础上，分别建立了沙垅阻力、总阻力、冰期阻力与水流强度间的关系。
A ridge, as of sand or gravel, on a shore or streambed, that is formed by the action of tides or currents.
沙洲，沙滩：在海边，河床等处由沙子或小石子形成的隆起，由潮水或水流运动而形成。
Every one and personage appraise the middle demand "childhood" story minor puncture vine ridge about the graceful Liao sand , grandmother , grandfather.
求《童年》中关于阿廖沙，外祖母，外祖父，小茨冈的故事各一个以及人物评价。
It is suggested that there are two kinds of potential subtle traps:intrachannel tidal sand ridge structural-stratigraphic traps and channel lateral-sealing structural-stratigraphic traps.
指出水道内潮流砂脊构造-岩性圈闭和水道侧向遮挡构造-岩性圈闭两种有利的潮流砂脊隐蔽圈闭。
It is suggested that there are two kinds of potential subtle traps:intrachannel tidal sand ridge structural-stratigraphic traps and channel lateral-sealing structural-stratigraphic traps.
指出水道内潮流砂脊构造-岩性圈闭和水道侧向遮挡构造-岩性圈闭两种有利的潮流砂脊隐蔽圈闭。
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