淤泥的

This is a very first bottom of the sea diorama I've made, having thought long and easy over the problem, encasement on 3 sides should give a good impression of under the waves, the diver with no bubbles was a disappointment, I asked and got several replies on this problem as to the colour of the seabed, so going with a mix of sand and mud, I thought this would cover most of the angles.

这是我做的最早的海底场景，考虑了很久，易于问题，三面装箱应该提供一个好的水下效果，潜水员没有气泡令人失望，在这个问题我询问并获得若干的答复，如海床的颜色，与之相配的沙子和淤泥，我认为这将涵盖了最多的角度。

However, if you swim in outdoor natural river, lake and sea, you must pay attention to the followings: water must be clean running water without any infectious disease; river bottom must be sand bottom without any sludge, riprap, growing float grass, submerged rock, sharp plants and fishes injuring human; zone must be one without busy transportation with smooth water flow.

经过卫生防疫部门检查合格的开放游泳池当然是比较理想的游泳场所，但如果在户外天然的江河湖海中游泳则必须注意：水必须是清洁、无传染病的活水；河底必须是无淤泥、乱石、丛生水草、暗礁、尖利植物及伤人的鱼类的沙底；水流平缓而非交通频繁地带。

It is thought that the channel bay line evolution processes can be divided into four stages. The first stage is soon of the sea level stable when the bayhead mountines are eroded and developed abrasion geomorphy and the productive materials were transport into the bay deposition by the tidal current and wave current and were reworked into gravel dams. The second stage is characterized by the fluvial output sediments and eroded sediments mixed deposition in channel bay and developed marine accumulation plain and sand riges in the plain under the wave reworked. The third stage developed clay silt marine accumulation plain under the action of the channel current and the wave action is very limited. The fourth stage is marked by human being reclaim which result in the channel bay filled and evoluted into a strait arce coast.

文章认为，峡道海湾的充填经历了四个阶段，第一阶段以峡道海湾湾顶山体在波浪作用下产生的侵蚀物质充填为主，发育了海蚀崖、海蚀洞、海蚀穴等侵蚀地形和湾顶砂砾石堤等堆积地形交替的峡道湾顶地貌，第二阶段以河流输出物质和峡道湾岛屿、礁石侵蚀物质在潮流作用下向峡道湾输运，由潮流和波流共同沉积为特征，发育海积平原，部分粗颗粒泥沙在波浪的改造峡，发育平原沙堤，第三阶段以河流输出物质为主，在涨落潮流搬运下进入峡道和峡道湾沉积，在峡道湾中发育以淤泥质粉砂为主要物质的海积平原，第四阶段以人类围涂造田为标志，加速峡道湾的充填过程，使峡道海湾最终趋于夷平，形成顺直均衡的弧形海岸。

To investigate the mechanisms of biohydrogen production by anerobic fermentation of solid organic waste, gas chromatography is used to analysis the biogas and volatile fatty acid in anaerobic bio-reactor. Firstly, the ability of hydrogen production by digested sludge from the West Lake, Enteobacter aerogences, digested sludge from sewage farm, the fluid of methane pool and dejecta have been studied. The rule of the ability of hydrogen production by different bacteria under different control condition. Simultaneity, the importance of the synergistic effect on hydrogen production has been proved.

本文首先选用西湖底的厌氧活性污泥、产气肠杆菌、污水处理厂的淤泥、沼气池发酵液以及猪粪等不同菌群对废弃食物——马铃薯进行厌氧发酵产氢特性实验研究，得到马铃薯在各不同菌群及工况下的发酵产氢能力，同时发现产氢菌间的协同作用很重要，在控制好发酵条件的情况下，产氢菌群发酵通常会好于单一产氢菌的发酵。

Flood drain of wide lowland plain behind mud coast mostly clings to tide locks on seacoast,and the influence of tidal flat inning project on tide lock drainage should be solved through seawall line choosing.

淤泥质海岸后方大面积的低地平原主要通过海岸上建设的涵闸排水，潮滩匡围对沿海涵闸排水的影响是围垦工程必须解决的问题。

Called botos in Brazil, the freshwater dolphins of the Amazon appear to glow orange when navigating the river basin's tea-colored brew of silt and rotting vegetation.

在巴西称为&botos&的，是一种当航游在被淤泥和腐烂的植被&酿成&的河流中，呈现出橙光的亚马逊淡水海豚。

YAHOOS had not been always in their country; but that many ages ago, two of these brutes appeared together upon a mountain; whether produced by the heat of the sun upon corrupted mud and slime, or from the ooze and froth of the sea, was never nkown; that these YAHOOS engendered, and their brood, in a short time, grew so numerous as to overrun and infest the whole nation...

雅虎并不是这个国家原来就有的，但是在许多许多年以前，两只这种野兽一块儿出现在一座山上。至于是太阳晒着烂泥生出来的，还是由海里的淤泥和残渣变化而来的，则永远不得而知。那两只&雅虎&开始繁殖，它们的后代在短时间之内增得很快，以致于遍及全国各地，并且在各个地方为非作歹。

Coast zone, located in the connection belt of sea and land, has been becoming an important area for the international competition and exploitation owing to itself abundant natural resources and predominant geographic location. Silt tidal flat and suspended sediment of case II waters are two important research issues.

海岸带地处海陆之交，它凭借其自身丰富的自然资源和优越的地理位置成为国际竞争和开发的重要区域，淤泥质潮滩和Ⅱ类水体悬浮泥沙是其重要的研究对象。

Maryland's eastern Shore was a world of marshes and mudflats,of wide fields with row crops straight as soldiers.

马里兰的东岸原是沼泽和淤泥滩的世界。广阔的田野上作物如士兵般整齐的排列着。

This paper in troduces the whole process and some techniques for underwater topography and sludge thickness surveying of Shuiguo Lake, done by GPS Receiver and dual frequency digital Echo Sounder. Its results offer reliable information for Shuiguo Lake's improvement.

阐述了采用GPS接收机和双频数字测深仪，以伪距差分实时定位测量模式施测水果湖水下地形和淤泥厚度的全过程和若干技术问题，所得结果对水果湖的治理提供了可靠的资料，指出了武汉市湖泊治理的迫切性。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷