海底

It is shown from the analysis results that in order to achieve the submarine tunnel service life of 100 years,the side concrete coating thickness in the sea area tunnel section is recommended to be 60 mm and additional reasonable construction error,the con.

通过对胶州湾海底隧道工程所在地的环境作用进行分析，以基于钢筋混凝土劣化模型的设计方法，对海底隧道衬砌混凝土的耐久性进行研究。

The study of ocean color is an important part of the ocean research. The suspended matter is the major resource for the alongshore sediments and its distribution character and density have much relate to the flux balance of the sediments in the estuary.

海洋水色的研究是海洋研究的重要一部分，对于大陆边缘及近岸区域来说，陆源悬浮体是边缘海海底沉积物的主要来源；同时，其分布特征及数量变化与河口附近海域海底沉积物的通量平衡有很大的关系，因此，关于悬浮体的调查研究是十分必要的。

Athe term "Sultanate of Oman" means the territory of theSultanate of Oman and the islands belon ging thereto, including the territorial sea and any area outside the territorial sea over which the Sultanate of Oman may, in accordance with international law and the laws of the Sultanate of Oman, exercise sovereign rights with respect to the exploration and exploitation of the natural resources of the sea-bed and the sub-soil and the above-lying waters.

"阿曼苏丹国"一语是指阿曼苏丹国领土及其所属岛屿，包括领海，以及根据国际法和阿曼苏丹国法律，阿曼苏丹国拥有勘探和开发海底和底土资源以及海底以上水域资源的主权权利的领海以外的区域

By electromagnetic theory, for the case that the magnetic dipole source and the receiver are set in seawater, the general expressions of frequency_domain electromagnetic responses for a layered benthal model are deduced. From those, the transient response expressions of three common configurations—vertical magnetic dipole_dipole, central loop, and coincident loop, located on the surface of uniform half_space seafloor, are derived respectively, supposing that seawater is uniform half space, or its depth is finite.

根据电磁场理论，推导了磁偶源和接收点均位于海水中时层状海底模型的频域电磁场响应一般表达式，并通过此式，得到了海水为均匀半空间和有限海水深度两种情况下，垂直磁偶极装置、中心回线和重叠回线分别置于均匀半空间海底表面时的瞬变电磁响应表达式。

By comparison, the undersea tunnel that is now the world's longest -- the Chunnel, linking Britain and France -- is only 30 miles long.

作为比较，当前世界上最长的海底隧道――连结英国和法国的海底隧道――仅仅有30英里长。

The profile distributions of silicate, phosphate and nitrate suggest that the organic material decomposition in area is mainly through nitrification during early diagenesis. Based on benthic fluxes of nutrients calculated using Fick's first law, benthic fluxes of silicate, phosphate and nitrate are -886.45~42.62 mol/(m^2d),-3.04~5.83 mol/(m^2d) and -189.43~21.05 mol-(m^2d), respectively, and perhaps silicate and nitrate are one of the major sources of nutrients for bottom water. Our results also reveal temporal and spatial variations of benthic fluxes for silicate, phosphate and nitrate, which may be related to sedimentation environment changes caused by global climatologic change.

在水－沉积物介面附近矽酸盐、磷酸盐和硝酸盐都存在著极陡的浓度梯度，Fick扩散定理的计算结果表明，研究区内矽酸盐、磷酸盐和硝酸盐的海底扩散通量分别为-886.45～42.62mol/、-3.04～5.83mol/和-189.43～21.05mol/，且矽酸盐和硝酸盐主要是从沉积物向底层水体扩散，是底层水体营养盐的来源之一；研究区内矽酸盐、磷酸盐和硝酸盐的海底扩散通量存在著一定的时间和空间变化，这可能与因全球气候变化而导致的沉积环境的改变有关。

Unique in Mauritius, this underwater submarine invites you to live a rare experience: go down to a depth of 35 to 40 metres amidst a mass of coral from where you can contemplate numerous multicoloured fish species, wreckages, anchors and other neglected treasures at the bottom of the sea..

毛里求斯独一无二的体验，乘坐潜水艇将会给您留下珍贵的回忆：让您潜入到35到40米深的水下，置身于珊瑚丛中，观赏五光十色的海底鱼类，看看沉没于海底多年的古船残骸、旧锚，或者探索其它什么早已被人忽略的海底传奇。。。。。。

Seismic energy is disturbed and attenuated seriously under the bad geological conditions for seismic exploration in southern Huanghai basin, and therefore the Meso-Paleozoic wave group of marine reflection seismic cannot be recognized and the seismogram does not meet the requirement for evaluation of pre-Tertiary oil/gas resources in southern Huanghai basin. In May 2006, marine magnetotelluric sounding experiment was carried out and reliable data were acquired.

针对南黄海盆地深层地震地质条件差，地震波受屏蔽，能量严重衰减，在海洋反射地震资料中很难识别反映中-古生界的反射地震波组，不能满足南黄海盆地前第三系油气资源前景评价的需要等问题，于2006年5月，开展了南黄海海域海底大地电磁测深试验，在盆地内五莲斜坡和胶州凹陷区布设了3个海底大地电磁测深点，取得了可靠的海底观测数据。

An algorithm for decomposition of multi wave and multi component data into upgoing and downgoing P wave and S wave was derived in frequency wave number domain in this paper. The reflection coefficient versus incident angle was calculated, which can provide foundational data for the AVO inversion of elastic parameters and prediction of fluid factor.

在频率波数域中采用解析法，解出多层条件下海底实测的多分量地震数据分解成上行和下行P波和S波的算法，导出海底各层地震反射系数随入射角变化的递推计算公式，为海底多波多分量AVO弹性参数的反演及流体因子预测提供基础数据。

We analyze the distribution of temperature and heat flow of the sea floor sediment in the area of East China Sea slope and West basin area of the Okinawa Trough.

利用实测的海底温度和海底热流资料对东海陆坡和冲绳海槽中轴以西的槽底地区的海底温度场和热流场进行了分析。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。