为了避免在采样过程中搅起沉积物质,瓶子不得接触水底。
不能排除,但是,可变沉积物的理化特性也产生了一些效果。
但是随着漏油沉降到深海海底,目前来看很难知道他们将如何完成那一目标。
在翅碱蓬各器官中的分布特征与根系沉积物中有机质及污染物理化性质有关。
天然河流的悬沙,通常系由各种大小尺寸和沉速的粒子组成。
运用生物毒性监测方法,对深圳市南山区大沙河底泥毒物污染特征进行了分析。
利用抗坏血酸的增感作用直接测定了渗透水和水系沉积物中的痕量铍。
他们翻动岩石,搅动沉淀,期待着下游的网中能够有所收获。
若,旧事提至今日,不管按不按长姐的导向所为,起码会对长姐的话加以过滤沉淀,三思方为。
输砂通量考量非均匀沉滓之悬浮载及河床载运移,以及两者间交换之机制。
小分有机酸对萘在沉积物上的吸附影响主要取决于两个方面的作用。
但是这没有太大的作用,因为这些支流提供的沉积物不足以产生生态意义上的效果。
这些样品柱由潜水员沿沉积物表面方向采集,两端均塞住。
第二类样品柱,“表面浅采型柱”,用于测定新近沉积的沉积物的组成。
反观地球上的水则是一直在反覆搬运著数量庞大的沉积物,那麽在火星上也可能进行相同的过程。
不同方法预测的稳定带底界与实际含水合物沉积底界很难一致。
介壳与骨骼若落在海底,而不为沉淀物所掩盖,也便腐烂而消灭。
最后对推荐的最优方案,进一步讨论了考虑风场条件和沉积污染后对水质模拟结果的影响。
套管的弹性运动可以碎裂淤积在阀门内的任何沉淀物,这使得A型夹管阀成为一款可靠的低维护的阀门。
该模型引入了非饱和输沙的概念,能够反映沿程细沟侵蚀的变化规律。
潮流作用下,绝大部分黄河入海泥沙沉积在黄河三角洲附近,只有少量悬沙可以发生长距离输送。
老旧热水器的底部会生锈,积灰并产生沉淀物,同时还会消耗15%的家庭能源。
通风空调系统风管中的聚集物可能引发火灾,或成为火灾在建筑物内蔓延传播的重要途径。
三角洲沉积物堆积的重量可以大到使地壳下沉的程度,因此在沉积中心周围形成一条深沟。
环境保护署每月进行水质监测一次,而海床沉积物监测则每年进行两次。
有关水质及沉积物样本测试方法详情,请参阅附录A-13及A-14。
1·They are found wherever fast rivers carrying loads of coarse sediment once flowed.
在携带大量粗泥沙的湍急河流流经的任何地方,都能找到它们。
2·Others point out that decreased sediment loads will likely lead to erosion of downstream riverbanks and the Mekong Delta.
其他人指出,泥沙负荷的减少可能会导致下游河岸和湄公河三角洲的侵蚀。
3·Scientists believe water activity affected this plateau after the formation of the nearby canyons. Although the source of water and sediment remains uncertain.
科学家相信,在附近峡谷形成之前这片高原受到过水的影响,虽然水源和泥沙的问题仍不明朗。
4·Nevertheless, sediment continues to pour down from the mountainside because of poorly planned road excavations.
然而因为公路挖掘规划拙劣,泥沙继续从山上倾泻而下。
5·River sediment is a major threat that could undo all the positive effects the dam is supposed to bring.
河流中泥沙的堆积将是一个由大坝修建所产生的,能抵消所有正面影响的巨大威胁。
1·The organic matter may partially decompose, using up the dissolved oxygen in the sediment.
有机物可能会进行部分分解,并耗尽沉积物中的溶解氧。
2·The crater, now deeply buried in sediment, was originally about 200 kilometers in diameter.
这个陨石坑现在深埋在沉积物中,最初直径约200公里。
3·They had found a prehistoric boat, preserved by the type of sediment in which it was buried.
他们发现了一艘史前的船,这艘船依靠埋藏它的沉积物保存了下来。
4·So sediment is transported and then deposited and it forms layers on the Earth's surface over time.
所以沉积物被运输,然后沉积,随着时间的推移,它在地球表面形成了层。
5·Most desert streambeds are normally dry, but they occasionally receive large flows of water and sediment.
大多数沙漠河床通常是干燥的,但它们偶尔也会有大量的水流和沉积物。
1·At certain times, apparently, more icebergs from the Arctic Ocean in the far north were traveling south well into the North Atlantic before melting and shedding their sediment.
显然,在某些时候,来自北冰洋最北端的更多冰山赶在融化沉积前向南漂入北大西洋。
2·Aside from biological collections, Scripps also houses cores of sediment collected from the ocean bottom.
除了生物类的藏品外,克里普斯海洋研究所还保存有从海底收集来的沉积岩芯。
3·The tectonic location, stress condition, sedimentary environment, sediment characteristic and wall rock condition are the elementary factors considered in loop bedding study.
研究环状层理必须综合考虑构造位置、应力条件、沉积环境,沉积特征、围岩条件等因素的影响和控制作用。
4·There are two basin sediment types: the platform type and trough type.
盆地沉积类型有台地型和海槽型两种。
5·Deposition is the laying down of sediment that has been transported.
沉积是已搬运的物质再沉积下来。
1·Many organisms that die in the sea are soon buried by sediment.
许多在海里死亡的生物很快便被沉淀物掩埋。
—— 《柯林斯英汉双解大词典》
2·When snorkeling, do not touch the coral or stir up sediment, as these actions can damage the reef's fragile ecosystem.
潜泳的时候,不要碰珊瑚礁或者搅动沉淀物,因为这样做可能会破坏珊瑚脆弱的生态系统。
3·Ocean plants buried in sediment can help reveal Earth’s temperature thousands of years ago.
沉淀物下被埋的海洋植物能帮助揭示数千年前地球的温度(变化)。
4·However, I did find some really cool places where there had been soft sediment deformation, probably from the rocks landing in marshy areas next to the river.
然而,我确实发现了一些真正酷的地方,那儿曾经有一些柔软的沉淀物异形,可能从岩石飘落在紧邻河流的沼泽区域。
5·His team analysed mud samples from Lough Monreagh in Ireland and discovered layers of white sediment made up of calcite crystals from algae.
他的团队分析了爱尔兰洛蒙雷阿湖泥浆样本,发现了由海藻中方解石晶体构成的白色沉淀物涡旋层。
1·Scientists first identified this impact in 1980 from the worldwide layer of sediment deposited from the dust cloud that enveloped the planet after the impact.
1980年,科学家首次在从尘云中沉淀下来的全球范围的沉积层中识别出这种撞击,这些尘云在撞击后围绕着地球。
2·They could train farmers to allow the sediment to settle out of the wastewater before using it-thereby avoiding the worst of the faecal matter.
还可以培训农民,让他们在使用废水之前就通过沉淀来净化它,从而避免出现最坏的残渣问题。
3·The gold, detached from the copper, forms a sediment at the bottom of the cell.
针脚里的铜溶解之后与金分离,金沉淀在电解池底部。
4·They turn up rocks and disturb sediment to see what flows into a collection net downstream.
他们翻动岩石,搅动沉淀,期待着下游的网中能够有所收获。
5·Older wines may also have some sediment, which doesn't damage the flavor.
年份长的酒还可能会有一些沉淀,酒的味道却不会因此受到什么影响。
1·A mass of ammonifiers in water body and sediment can make ammonia accumulate in water body through ammonification.
水体与底泥中大量氨化菌可能通过转氨作用产生的氨氮积累在水体中。
2·The results showed that the compound barrier with calcite and zeolite can not only control the ammonia release from the sediment, but also reduce the phosphorus release from the sediment effectively.
结果表明,天然沸石和方解石复合覆盖层不仅可以有效抑制底泥氨氮释放,也可以有效抑制磷的释放。
3·A two-dimension water quality model, which coupled with sediment, was adopted to forecast the effect of water diversion in Xuanwu lake.
建立与底泥耦合的二维湖泊水质模型,结合底泥静态释放系数,对玄武湖引调水方案进行预测研究。
4·Besides, this article, with chemistry monitoring means, analyzes that the poison in the bottom sediment is mostly organic matter.
文章还结合化学监测方法,分析了大沙河底泥毒物主要为有机毒物。
5·The inhibition of copper ion on nitrification activity of nitrifying bacteria in sediment and activated sludge were studied.
研究了铜离子对底泥和活性污泥硝化活性的抑制作用的差异。
1·The urinary sediment inspection is an important methods of clinical diagnostication and one of the common means used in modern medical researching field .
尿沉渣显微镜检查是进行临床检验和诊断鉴别的重要方法,是现代医学研究中常用的手段之一。
2·Finally, the experimental result proves the contribution of watershed algorithm to urine sediment image segmentation.
最后,通过实验结果证明了分水岭算法对尿沉渣图像分割所做出的贡献。
3·Objective: to investigate the influence factors of unusual red blood cell result using UF-100 urine sediment analyzer.
前言:目的:研究UF - 100全自动尿沉渣分析仪检测异常红细胞的影响因素。
4·The sediment of coffee will settle.
咖啡的沉渣会沉淀。
5·Urinary sediment microscopic inspecting is an important method in clinical inspection.
尿沉渣显微镜检查是临床检验的一项重要手段。
1·The principle of the skimming oil and scraping sediment machine and its control system design based on programmable logic controller (PLC) are introduced.
介绍了撇 油刮 渣机的工作原理 ,采用PLC可编程逻辑控制器设计了该机的控制系统。