查询词典 sea-bottom

Persculptus to Parakidograptus acuminatus Zones, could be recognized during the interval. In addition, the abundance changes of the radiolaria at the Goujiaya and Datangkou sections were coincided with the sea-level changes, and correlatable with the synchorous 5 fluctuations of the sea-level in North America and Africa. So above-mentioned 5 cycles could represent the eustasies during the latest Ordovician to the earliest Silurian.

在这2个剖面上，放射虫丰度变化也表现出相似的规律，与笔石和腕足类的形态、分异度和丰度变化所反应的海平面升降大体一致，和北美、非洲同期海平面的5次波动可以对比，据此指出，以上5次海平面旋回代表了晚奥陶世晚期至志留纪初期全球性海平面变化。

Persculptus to Parakidograptus acuminatus Zones, could be recognized during theinterval. In addition, the abundance changes of the radiolaria at the Goujiaya and Datangkou sections werecoincided with the sea-level changes, and correlatable with the synchorous 5 fluctuations of the sea-level inNorth America and Africa. So above-mentioned 5 cycles could represent the eustasies during the latestOrdovician to the earliest Silurian.

在这2个剖面上，放射虫丰度变化也表现出相似的规律，与笔石和腕足类的形态、分异度和丰度变化所反应的海平面升降大体一致，和北美、非洲同期海平面的5次波动可以对比，据此指出，以上5次海平面旋回代表了晚奥陶世晚期至志留纪初期全球性海平面变化。

Japonicus used in this experimentation is matemal inheritance.5 Sequence analysis of mitochondrial 16S rRNA and COI gene and molecular phylogeny of four species of sea cucumber500 bp 16S rRNA and 540 bp COI fragment were obtained by PCR method from mitochondrial DNA of four species of sea cucumber, Apostichopus japonicus, Holothuria fuscogilva, Cucumaria frondosa and Mensamaria intercedens. Variable sites, nucleotide diversity, average number of nucleotide differences and average number of nucleotide substitutions per site were calculated to analyze sequence difference, and phylogenetic trees were constructed by the NJ and ME method.

结果显示在来自这5组家系的100个后代中仅检测到母本的单倍型，刺参的线粒体遗传模式表现为典型的母系遗传。5 4种海参16S rRNA和COI基因片段序列比较及系统学研究采用PCR技术对山东荣成、长岛、俄罗斯和日本的刺参，黄乳海参，北大西洋瓜参，二色桌片参的16S rRNA和COI基因片段进行了扩增和测序，分别得到了长度约为500 bp和540 bp的片段。

East China Sea Yellow Sea Demersal fish Structure of community

东、黄海；底层鱼类；群落结构；多样性

East China Sea ; Huanghai Sea ; demersal fish ; structure of community ; seasonal dynamics

东海；黄海；底层鱼类；群落结构；季节变化

Based on otter trawl catch rates of five surveys conducted by South China Sea Fisheries Research Institute from 1961 to 1999, changes in demersal trawling fishery resources in the northern South China Sea were analyzed.

利用1961~1999年期间南海水产研究所5次渔业资源调查的底拖网渔获率数据，分析了南海北部底拖网渔业资源的数量变动。

Community ; Index of similarity ; Index of diversity ; Cluster analysis ; Dendrogram ; Demersal fish ; Deep sea ; East China Sea

群落；相似性指数；多样性指数；聚类分析；树状图；底层鱼类；深海；东海

And once I spoke of a brook to the sea, and the sea thought me but a depreciative defamer.

我也曾对大海谈到小溪，大海认为我只是一个低估的诽谤者。

Using methods of sedimentary and geochemistry, this paper analyzed the sedimentary environment in the Majiagou Formation. It suggests that Member 1, Member 3 and Member 5 are characterized by a dry and hot climate as well as fall of the sea level. The area of Well Longtan 1 in the eastern basin is abundant of platform evaporites with the depositional anhydrite and salt rock, surrounded by a suite of dolomite intercalated by the thin layers of anhydrite from the anhydrite\|dolomite platform sediment. It deposits muddy dolomite, dolomitic limestone and fine\|grained dolomite in the limestone-dolomite platform and restricted sea.

运用沉积学与地球化学方法，分析了研究区马家沟组的沉积环境，认为：马一段、马三段和马五段沉积时期气候干热，海平面下降，盆地东部龙探1井区一带主要为台地蒸发岩相沉积，发育了膏盐岩和盐岩沉积，其周边则发育了一套白云岩夹薄层硬石膏岩的含膏云坪相沉积，在盆地东部周边地区主要沉积了泥质白云岩、白云质灰岩和细晶白云岩的云灰坪和局限海相沉积。

It has become the restrictive factor of economic development. The implement of water saving rebuild programming in northern droughty areas is an important measure for sustainable use of water.This study is based on the investigation of the type, step and method of SEA, and focuses on the water saving rebuild programming in Mongolia Hetao regions as a case. The SEA technique is applied to agricultural sustaining using of water. The contents and impact factors are summarized along with the objective and standards defined clearly. This paper also offers assessment indexs on water saving rebuild programming, which evaluates the subsequent environmental impacts and public benefits. Some measures avoiding the negative impact are also presented to ensure that this programming is in accordance with the principle of sustainable development.

本论文在对战略环评的类型、步骤和方法进行充分调研的基础上，针对内蒙河套灌区水资源可持续利用的节水改造规划，将战略环评的相关方法应用到灌区农业水资源的可持续利用战略中，概括其环境评价所涵盖的内容，分析总结相关的影响因子，明确评价目标和标准，尤其突出战略环评在节水改造规划应用中的评价指标，重点评价灌溉节水改造规划实施后，对环境产生的影响及其环境经济效益，并提出减缓负面影响的保护措施，使这一规划在实施过程中更加符合可持续发展的原则。

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。