水域

The database such as the vessel database, navigation aids facility database, hydro-meteorological information database and the database of the port facility and above–water facility in the area of responsibility are set up that the MSA can realize the vessels entering or leaving port management, above-water and underwater construction management, navigation alarm and announcement publishing, above water dangerous condition, accident , water area pollution , and vessel alarm monitoring in the area of responsibility, as well as master the circumstances in the water area of the accident and dangerous conditions and the dynamic positions of the navigation vessels.

建立了船舶数据库、助航设施数据库、水文气象数据库、港口设施、辖区水上设施数据库。实现海事局对船舶进出港管理、水上水下施工管理、发布航行警告、航行通告、监控辖区水上险情、交通事故、水域污染、船舶报警，掌握事故、险情水域情况以及有关巡航船舶位置动态。

The dolphin's behaviors inclde feeding, traveling and playing were mostly observed in Xigang, Jiyu, Qingyu, Wuyu water areas. The abundance ratio of behavior observed in Jiyu, Qingyu, Wuyu water areas were highest, it indicates that these areas are important to the ptotection of Chinese white dolphins inhabiting the Xiamen Bay.

摄食行为、旅行行为和游戏行为主要集中在厦门西港和鸡屿至青屿、浯屿一带水域内，尤以鸡屿至青屿、浯屿一带水域内的行为丰富度最大，说明该区域对厦门中华白海豚的保护至关重要。

Visit our Bull Shark Safety Guide to learn how to stay safe in salt and fresh water.

请来我们的牛鲨安全指南网页看看，了解如何在海水水域和江河淡水水域确保人身安全。

During the experiment the paper observed that temperature of water close-by orifice decrease , water froze and the ice layer continually gain in by a period of continued drain time.

本文在实验过程中观察到经过一段持续的排放时间后，近管口水域的温度降低，出现水域冻结并冰层不断增长状况。

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。

The company has ambitions to regenerate dockland areas into Wirral Waters and Liverpool Waters, massive commercial and residential districts on each side of the river.

皮尔控股雄心勃勃，计划把默西河两岸的码头区，改造为大型商业区"威勒尔水域"，和住宅区"利物浦水域"。

We find evidence for a metastable zone of euxinic waters impinging on the continental shelf and sandwiched within ferruginous deep waters.

他们的结果表明，在埃迪卡拉纪时（它处于6亿3500万年之前至5亿4200万年之前之间）地球上的海洋是层化的，其中某些层区为硫化物水域和富含铁的水域。

The third chapter puts forward amelioration methods of marine traffic security management of Dalian port based on the hereinbefore analysis and the reference of foreign advanced experience.

第三章在前文分析的基础上，参考了国外先进的水域交通安全管理经验，提出了大连港水域交通安全管理的改进方法。

The water pollution and other factors affecting the structures of prey, will change the intrinsic natural growth rate and maximum population capacity, furthermore affecting the icefish population.

水域污染和其他破坏水域饵料生物种群结构的因素能导致银鱼的内禀自然增长率r值和最大种群数量Nmax发生变化，从而引起种群的数量变动。

The results are as follows: 1 great changes have taken place in land use and landscape pattern from 1995 to 2000; the area of woodland, water and unused land has been reduced and that of grassland, cropland and construction land increased; 2 the advance of fractal dimensions, the diversity index and landscape fragmentation degree showed that landscape units became strongly fragmented; 3 the dominant degree of construction and unused land has changed little but that of meadow and water increased, and that of farmland and woodland decreased to some extent, which indicated that the trend of landscape pattern changed from cropland and woodland to meadow and water; 4 the changes of land use and landscape patterns near the road are obvious and it is urgent to strengthen eco_environment protection.

主要结果如下：①1995-2000年间，研究区土地利用变化显著，其中林地、水域和未利用土地面积下降，而草地、耕地和建设用地面积增加；②景观破碎化程度加剧，分维数、多样性指数和景观破碎度均增加；③建设用地和未利用土地优势度变化不大，耕地和林地的优势度减小，草地和水域优势度增加，表明研究区景观格局由耕地、林地向草地和水域转变；④交通干线附近的土地利用和景观格局变化显著，加强这些区域的生态环境保护与建设势在必行。

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。