查询词典 sediment sampler

Moreover, human activities play a more and more important role in the development of tidal flat. The concentrated coastal engineering change the dynamic environment of the tidal flat, and the exploitation of oil, natural gas and groundwater results in surface subsidence in the coastal area. In addition, sea level rise and the accompanied increase of storm surge frequency and intensity, will strengthen the erosional process, reduce the tidal flat area, coarsen the sediment, made the slope steep, and cause other environmental effects.

人类活动的环境效应对渤海潮滩发育的作用越来越明显，环渤海地区密集的海岸工程将改变原始的潮滩动力环境；石油、天然气、地下水的开采会导致海岸带发生地面沉降；海平面上升以及与其相伴随的风暴潮作用频率与强度的增加都将会使渤海潮滩的侵蚀过程加强、潮滩面积缩小、滩面物质粗化、坡度变陡，并产生一系列的相关的环境效应。

Mixed carbonate sediment in beach or tideland facies with quartz sand taken from bayou or beach by coastwise flow and circumfluence.

由沿岸流和回流将河口或滨岸海滩的石英砂带到滨岸浅滩和潮坪相碳酸盐沉积区混杂而成。

Studies on theories and methods of numerical simulation of estuarine cohesive sediment transport are carried out in this paper.

本文就河口粘性泥沙数值模拟的理论与方法展开了研究。

Marine microorganisms could be classified as seawater,sediment,commensal,symbiotic and deepsea groups.

海洋微生物研究依据分离菌的生境来源可分为海水、沉积物、共栖、共生和深海菌群。

Summarizing the studies obtained,sediment,commensal,and symbiotic bacteria were more important in searching for nature pharmaceutics.

从报道的研究结果看，沉积物细菌、共栖细菌和共生细菌是海洋微生物天然药物筛选的重要来源。

Its the foundation of sediment yielding model to simulate the slope surface runoff yielding and conflux and rainfall-flood process accurately.

准确模拟坡面产汇流及降雨洪水过程是产沙计算的基础。

Therefore, control and sediment control channel becomes the key to solving the problem of the Yellow River.

因此，控制和治理沟道的泥沙就成了解决黄河问题的关键。

As a consequence, it accelerated the processes of biogeochemical cycling of nutrient in the Yangtze estuarine and tidal flat sediments. Corbicula fluminea mainly inhabited near the surface tidal sediment. It affected the nitrogen cycling in the surface sediments by the physiological activities such as the excretion.

蟹类动物通过生物扰动改变了沉积物的物理结构，增加了沉积物与大气之间的接触面积，使沉积物氧含量大为增加，加快了沉积物中生源要素赋存形态之间的转化，因此蟹类活动促进了潮滩沉积物中生源要素的生物地球化学循环过程速率。

Using a comparative and simulative approach, this study quantitatively explored the effects of macrobenthos (Ilyoplax deschampsin and Corbicula fluminea) on the exchange of nitrogen across the sediment-water interface and the early diagenesis of nitrogen in tidal sediments from the Yangtze Estuary....

研究表明，谭氏泥蟹主要通过掘穴活动增加沉积物-水-气三相接触界面，促进沉积物中的无机氮(NH+ 4- N、NO- 2 -N和NO- 3- N)向上覆水体中扩散，并且也加快了沉积物中氮的氨化作用和硝化作用速率，而河蚬则主要通过生理活动机制影响潮滩生态系统内氮素的迁移转化过程。

This study,based on the experiments and data analysis of 10 core sediment sample taken in March,2008,carries out research on current water eutrophication and analyzed the limitative factor of current Baihua Lake eutrophication and proposes the rational disposal measures according to the present condition of eutrophication.

本研究基于对2008年3月所采集样品(10个采样点三个层面)的实验分析与数据总结，对百花湖的富营养化现状进行了研究，指出了当前百花湖富营养化的限制因子；对沉积物中磷的化学形态进行分析研究，指出了磷形态的分布规律；同时针对目前富营养化现状，提出合理性治理措施。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。