水域

Based on monthly fishery resources investigation data of demersal trawl from 1986~1987 in the Pearl River Estuary and adjacent waters,the paper quantitatively analyzed variation of fish community of various species by cluster analysis and principal coordinates analysis of a package of MVSP.

根据1986~1987年珠江口及其邻近水域渔业资源的周年月份调查数据，运用MVSP软件包中的聚类分析和主坐标分析对珠江口鱼类群落的时空变化进行定量分析，描述珠江口鱼类群落的季节变化和区域变化特征，把珠江口从时空上划分为4个季节和5个水域，并与传统的划分方法作比较，讨论了这种分析结果的合理性。

The infusorium is subject only to accidental death, such as we can cause by the addition of some poisonous element to the water in which it lives, or by heat.

纤毛虫只会意外死亡，比如我们往它们生活的水域投毒或者加热这片水域等等。

Researchers of edge waves have often suggested that the varying longshore topography of sloping beach would affect wave heights in flowfields.

沿岸水域的研究者常指出，沿岸斜面地形变化往往影响沿岸水域波高变化。

However, research which has analytical solutions the link betweenalongshoretopographies and waveheightsisscant.Therefore,theaimofthis article attempts to explore how varying longshore topographies of sloping beaches and wave heights are related.

然而沿岸斜面地形变化与沿岸水域波高关系之解析解仍有发展空间，因此本研究旨在探讨不同沿岸斜面地形与该水域波高之间关系。

Data collected by surveys on commercial fisheries and field sampling in different stages showed that the assemblages have been dominated by lentic species in stead of lotic species after the impoundment of the Ertan Reservoir.

结果表明水库建成后不同区段的鱼类种类结构发生了变化，喜栖静水和缓流环境的种类逐渐在库区占主导地位，适应急流环境的种类主要分布于库尾和支流等局部水域中，一些外来种已经定居并在某些水域形成了优势种群。

The paper analyzed variety status of fishery species and dominant species in trawl production based on data of trawl production and biology measuration in waters of the Yangtze River Estuary in 1990's.

利用长江口水域20世纪90年代的拖网生产资料以及生物学测定数据，分析该水域拖网生产的渔获种类及优势种的资源变化状况。

Therefore, it is impossible for M. mongolica to dominate in zooplankton community in oligotrophic coastal waters. Our results suggest that ecological effects of M. mongolica on structure and function of food web are neglectful in oligotrophic nearshore waters, however, dynamics of population of this species in eutrophic coastal waters and its ecological effects require a further careful investigation.

根据上述结果我们初步推断：蒙古裸腹溞在贫营养型的海洋沿岸带水域中形成较大的自然种群并对近海食物网结构和功能产生重大影响的可能性不大，但该溞在富营养化近岸水域中的种群动态及生态学效应有待进一步研究。

The marine species occur predominantly in tropical waters of the Atlantic, Pacific, and Indian oceans, but several also range far poleward in these waters.

海龟主要出现在大西洋，太平洋和印度洋的热带水域，但是有些种类在这些水域的分布范围可接近南北两极。

Based on a great mount of data and research results, this paper discusses systematically the sedimental dynamics, themorphology evolution, the exchange channel analysis of water andsand between the Changjiang Estuary and Hangzhou Bay, the environmental feasibility and the effects of the large-scale coastal engineering and GIS application model around the NanhuiSpit, Shanghai with multi-methods.

本文在大量的实测资料和研究成果基础上，利用多种研究手段，以南汇嘴附近水域为研究基地，对南汇嘴附近水域的沉积动力、地貌演变、杭州湾与长江口水沙交换通道分析、芦潮港大型水利工程的工程效果与环境影响，以及GIS技术在南汇及其邻近海岸环境中的应用等问题作了系统的研究和探讨。

Be based on this, put forward to unseal the principle that water area travel develops and concept, of the development design that the activity visits on water and water area environment purify wait for travel to develop a proposal.

基于此，提出了开封水域旅游开发的原则和理念，水上游览活动的开发设计以及水域环境的净化等旅游开发建议。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。