海底的

After the identification signs of natural gas hydrate and its stability conditions were expounded systematically, the decomposition of natural gas hydrate in glacial and interglacial period and its potential influence on the global climate change, marine geological calamities, and benthal biological group were discussed emphatically.

在综合论述了天然气水合物的识别标志和稳定条件的基础上，着重讨论了冰期与间冰期天然气水合物的分解及其对全球气候变化、海洋地质灾害和海底生物种群的影响，同时给出了甲烷释放量的计算公式，并对拓展天然气水合物稳定性与全球环境变化之间相互关系的研究，提出了需要回答的关键问题。

Considering complicated conditions of the coastal dynamic environment, sediment dynamics, and together with the immature sediment itself, the predicted results will be somewhat limited if only with numerical model. So, in order to obtain microcosmic quantitative assessment and macroscopically understanding, numerical model is combined with field observations in the thesis. Firstly, the tidal current, SSC distribution, benthal deposited materials were basically analyzed by field observations. Then, the tidal current, SSC distribution, and the erosion and accumulation of the seabed were simulated with the numerical model of ECOMSED.

但由于海岸动力环境多变，泥沙运动复杂，加之泥沙问题本身的复杂性，如仅用数学模型，其预测结果将受到一定的限制，故本文采用实测调查与数学模型计算相结合的方法，宏观把握，微观量化，在掌握岚山港西突堤工程所在海域潮流、悬沙量分布、表层底质沉积物类型及特点基本态势的基础上，紧扣开发工程可能引起潮流场变化，分析工程后悬沙量、海底冲淤变化及其空间分布，进而建立潮流作用下的泥沙输运数学模型，首先比较好地模拟目前岚山港西突堤工程附近海域的潮流场和悬沙场，然后预测海湾沿岸可能引起的冲淤强度变化和冲淤区域的空间分布。

Consequently, sulphidic bottom waters on continental shelves may be more common than previously believed, and could therefore have an important but as yet neglected effect on benthic communities.

关于硫化物会被亚表层海水中的细菌完全耗尽、从而会被浅层沿海水域的遥感或监测活动忽略的发现表明，大陆架上含硫化物的海底水域也许要比我们所想的更普遍，所以有可能对底栖生物群落产生一个重要的、但以前却被忽略的影响。

This is a very first bottom of the sea diorama I've made, having thought long and easy over the problem, encasement on 3 sides should give a good impression of under the waves, the diver with no bubbles was a disappointment, I asked and got several replies on this problem as to the colour of the seabed, so going with a mix of sand and mud, I thought this would cover most of the angles.

这是我做的最早的海底场景，考虑了很久，易于问题，三面装箱应该提供一个好的水下效果，潜水员没有气泡令人失望，在这个问题我询问并获得若干的答复，如海床的颜色，与之相配的沙子和淤泥，我认为这将涵盖了最多的角度。

Para. 11. The technologies used to immerse people in a computer-generated world will,however, change radically during the coming decade, making the begoggled cybernaut as quaint an image as the undersea explorer in a heavy metal diving helmet.

这些技术曾经使人们沉浸于一个电脑主宰的世界之中；然而，今后的十几年间，它们将产生巨大的变化，从而使得戴着观望镜的赛百空间遨游者的形象十分古怪，就像戴着沉重的金属潜海头盔的海底探险者一样。

In the surveys, some very closely spaced survey lines displayed remarkable differences in crustal structure. To find the reasons for the differences and to analyze the reliability of crustal structure, ocean bottom seismometer data from the west and east sides of the Dongsha Islands were reprocessed and inverted with tomography technique. The routine processing and inversion procedures include clock correction, position correction, finite-difference ray-tracing-based tomography, checkerboard test and comparison of the inverted crustal model with initial models. As a key step, we analyzed the lateral velocity resolution and smoothed out the short wavelength velocity variation which maybe most probably artifacts in the final velocity models.

在一些相隔很近的测线上，探测的深部地壳结构却相差较大，为了分析这些探测结果中差异的原因和地壳结构变化的可靠性，本文以东沙东侧海域测线和东沙西侧海域测线为例，对采集的海底地震仪记录进行了时间、位置校正和初至波走时拾取，利用有限差分地震走时层析成像进行了走时反演，获得所在剖面的地壳速度结构，并分析了模型的横向分辨率，剔除模型中短波长的横向速度变化。

Underwater color photography was born with this shot of a hogfish, photographed off the Florida Keys in the Gulf of Mexico by Dr. William Longley and National Geographic staff photographer Charles Martin in 1926. Equipped with cameras encased in waterproof housing and pounds of highly explosive magnesium flash powder for underwater illumination, the pair pioneered underwater photography.

意译：海底下的彩色图片诞生在摄影一种猪形之鱼，照片来自佛罗里达的墨西哥海湾，由威廉博士长期和国家的路杂志的摄影师查尔斯·马丁合作于1926年预备防水设备的照相机和高曝光的镁闪光粉保证能够在水下照明，他们成为水下摄影的先驱者。

Based on the data of hydrography, measured waves, sediments, drilling Quanternary strata, microorganism, sporopllenin, landforms, climate and others in Zhoushan Islands channels, the strait channel effects are systematically studied.

本文根据舟山群岛峡道内分布于虾峙门、马岙、金塘水道和册子水道的水文泥沙实测资料，北仑港、野鸭山和虾峙门口门区的波浪观测资料，北仑电厂运煤码头前沿的第四纪地层钻孔资料、微体古生物鉴定和孢粉分析资料和虾峙门口门区5米浅钻资料，分布于金塘水道、册子水道、马岙三江口海域、虾峙门口门区和杭州湾南部的海底沉积物采样分析资料，册子水道东部野鸭山潮滩和马岙三江口潮滩的沉积物采样分析资料、潮滩地貌的踏勘资料、舟山群岛峡道地区的海图资料以及舟山群岛地区气象气候等其它资料，对舟山群岛峡道效应进行了综合性的系统研究。

A theoretical analysis shows that the non-zonation of ACC in the region of Kerguelen Plateau is due to the changes in potential vorticity of the water column caused by the curl of the ratio of wind stress to topography. The bifurcation and turning of ACC is related to the curl distribution.

理论分析表明，凯尔盖朗海台区ACC的非纬向性主要是由风应力和海底地形的变化造成的，它通过该海台时的南北路径的分叉和转向与该海区风应力与水深之比的旋度的分布相吻合。

Now, good sir, our Massachusetts magistracy, bethinking themselves that this woman is youthful and fair, and doubtless was strongly tempted to her fall- and that, moreover, as is most likely, her husband may be at the bottom of the sea- they have not been bold to put in force the extremity of our righteous law against her.

唉，好心的先生，我们马萨诸塞的当局认为，这个女人年轻漂亮，准是受了极大的诱惑才堕落的——何况，很可能，她的丈夫已经葬身海底——那些当官的不敢大胆地用我们正义的法律强制判她极刑。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。