recent sediment 中文意思是什麼
recent sediment
解釋
現代沉積物-
Based on 2m contour of surveyed bathymetry from 1976 to 1999 and mean - high - tidal line distracted from remote sensing images acquired by landsat - 5 tm from 1976 to 2000 respectively, quantitative analysis about alluvion and erosion as well as the relationship between accretion of modern yellow river delta and the water and sediment discharge of yellow river is made, and the results indicate the mean - high - tidal level is more effective than 2m contour of the bathymetry. it is found that the accretion of modem yellow river delta is becoming less and less, what ' s more, erosion is even more than alluvion in some recent years. diaokou promontory has been eroded seriously since yellow river changed its course in1976
以一般高潮線反映現代黃河三角洲沖淤演變時，從1976年黃河改道清水溝流路入海到2000年，整個黃洞三角洲凈造陸201 . 5km ~ 2 ，淤積有逐漸變慢的趨勢，甚至出現凈蝕退的年份；刁口河嘴大量蝕退，蝕退速率開始快速，后來逐漸變慢；清水溝河嘴大量淤積，淤積速率開始迅速，后來逐漸變慢，甚至出現凈蝕退；清水溝河嘴南側到支脈溝一段岸線與刁口河嘴以西到灣灣溝一段岸線基本穩定。 -
The research indicates that the climate character which is the temporal coupling of aridity, lack of rain and excessive wind, together with the thick sand matter sediment of the west liao river system, lead to the frangibility of environment in keerqin sandlot. in the recent years, there is a seriously lack of water resources. about 50 p
研究表明：該地區氣候特徵表現為乾旱、少雨、多風在時間上的耦合，加之西遼河水系巨厚的沙物質沉積，構成了科爾沁沙地生態環境的脆弱性』 o近些年來，水資源嚴重短缺，由於降水減少和不斷採集地下水，近50的湖、泡己乾涸。 -
The behaviors of the inflow and sediment, the recent evolution rules and trend of the river channel in this section as well as the changing rules and causes of the change of the hechangzhou brai - ded channel are analyzed and the scheme researches, engineering design, construction and the effects of the control works at the entrance of the left branch of the hechang sandbar are presented in the paper
根據鎮揚河目前的情況分析了該河段來水來沙特點、近期河道演變規律及演變趨勢，介紹了該河段二期整治工程的基本情況，並著重介紹了和暢洲左汊口門控制工程方案研究、設計、施工及工程效果等內容。 -
Finished the following important consulting projects in recent years : ( 1 ) to take charge of and participate in the design of the project of 25 thousand - ton petrol and gas quays of the jiangyin petrol company. ( 2 ) to take charge of and parricipate in the design of the project of 25 thousand - ton petrol and gas quays of zhang jia gang hada company. ( 3 ) to organize the feasibility study on the coastal engineering test hall construction project of nhri. to take charge of and participate in the design of the hall ( a large - size wave basin, 70m long and 50m wide. was constructed in it ). ( 4 ) to organize the project feasibility study of the laboratory of nhri for the basic law research on sediment transport, to take charge of the design of the project, and to participate in the design of the wind and wave flume ( 180m long ), in which the scientific research projects of waterway training works and coastal engineering structures can be carried out under the combined action of wind, wave and current
近幾年來主要完成以下幾項重大工程： 1 .主持並參與江陰石油公司2 . 5萬噸級油氣碼頭的設計； 2 .主持並參與張家港哈德公司2 . 5萬噸級油氣碼頭的設計； 3 .編寫了南京水科院海岸工程試驗廳可行性研究報告，主持並參與該試驗廳的工程設計，在該試驗廳內建有70米長50米寬的大型波浪水池； 4 .編寫了南京水科院「泥沙運動基本規律研究實驗室」工程可行性研究報告，並主持該項工程設計，參與完成180米長風浪水槽設計，該水槽建成后，可在風、浪、流綜合作用下進行航道整治和海岸工程的科學研究。 -
Seismic survey is a new method used to civil engineering area in recent years. it was widely applied to survey or detecting of roadbase, dam base, foundation of building, tunnel, river bed, lake bed and etc. the chief methods are reflection method, refraction method, wave velocity testing, surface ware survey and transverse wave suivey. seismic survey can divide different layer, measure the incidence of sediment stratum, detect the structure of rock, test the handle effect of surface wave survey, we can calculate the carrying capacity of foundation and other mechanical parameters. this technique can give service to some big engineering departments such as highway developing company, survey design company, water supply company, plan bureau, construct bureau etc
應用於工程的主要方法有反射波法折射波法波速測井面波法及橫波勘探等。地震勘探能詳細劃分地層高精度地確定沉積地層的傾角能夠準確探明巖體構造褶皺斷層破碎帶裂隙帶對于回填工程路基壩基，地震勘探可以檢測其回填處理效果對于隧道工程，可以探測隧道洞體的圍巖分類及洞口地質情況利用面波勘探所得到的瑞利波速度，可以準確推算地基的承載力動彈模量等力學參數。 -
Abstract : by analyzing the changes of incoming water and sediment in the lower weihe river, in allusion to the question of flood discharge capacity being not enough, control project being short, river pattern can ? t being controlled and the management being loose etc, advise to increase the investment, consummate the measures of flood prevention engineering and non - engineering. strengthen the management, consolidate the consciousness of flood prevention and disaster alleviation, in order to raise recent ability of flood prevention in the lower weihe river
文摘:通過對渭河下游來水來沙變化的分析，針對現狀堤防過洪能力不足、控導工程少、河勢得不到控制和管理工程等方面存在的問題，提出應加大投入力度，完善防洪工程措施和非工程措施，加強管理，強化防洪減災意識，提高近期渭河下游防洪能力。 -
There are three main genetic types : ( 1 ) biogas generated in high - latitude and low - temperature permafrost zone : ( 2 ) biogas generated in high salinity environment in high elevation ; ( 3 ) biogas in shallow pay generated in recent sediment
其主要成因類型有3種：高緯度低溫，永久凍土帶下形成生物氣；高海拔、高鹽度環境下形成生物氣；現代沉積物形成淺層生物氣。 -
The analyzed results are as follows : the late 1960 ' s cutoff of riverbends increased both the runoff amount and the sediment transport amount of the lower reach of jingjiang river, while the sediment deposition decreased in the lkngting lake area ; after the mid 1980 ' s, both the middle reach of yangtze river main stem and the dongting lake occurred a trend of decreasing annual sediment transport as a result of decreasing sediment releasing from the upper reach of yangtze river ; and in the recent 3 years ( 2003 - 2006 ), the three gorges reservoir first impoundment additionally reduced the sediment concentration in the middle reach of yangtze river flow with a long time, so a distance would be quite long for suspended sediment recovery, but the distance for bed - material load of suspended sediment recovery would be quite short
分析結果表明： 20世紀60年代下荊江裁彎后，三口（松滋口、太平口、藕池口）分流分沙減少，下荊江徑流量和輸沙量相應增加，洞庭湖泥沙淤積減少； 80年代中期以後，長江中游幹流及洞庭湖出口的年輸沙量呈減少趨勢，城陵磯至武漢河段河床由淤積轉為趨向沖淤平衡；三峽工程初期蓄水運用后，長江中游含沙量沿程恢復距離較長，但床沙質部分恢復距離相對較短。 -
The results indicated that with the change of water and sand condition and the altitude of tongguan and the development of the industry and agriculture in recent decades, the water environment of wei river had changed largely, which were shown as follow : annual runoff and seasonal flood decreased sharply ; water stream of large discharge decreased and the range of runoff decreased greatly ; sediment load per year decreased generally, sediment concentration of water increased, and the sand silting up was serious ; water channel swung and shrank, and water regime deteriorated ; frequencies of big floods decreased obviously, and hyper concentrated flood increased obviously ; water levels of the same runoff rose universally, and the frequencies of the floods increased and aggravated ; water pollution was very serious
結果表明，近期隨著水沙條件、潼關高程等的變化及工農業的發展，渭河的水環境發生了巨大變化，表現在年水量及汛期水量銳減；大流量級水流出現次數減少，水量減少幅度大；年輸沙量總體減少，河水含沙量增大，泥沙淤積嚴重；河道向擺動型發展，河道萎縮，河勢惡化；大洪水發生的次數顯著減少，高含沙小洪水明顯增多；同流量洪水位普遍抬高，洪災發生次數增加，洪災加重；水質污染極為嚴重。 -
There have been great changes of boundary conditions in the lower yellow river in recent years owing to the influence of water and sediment development and human activities
小浪底水庫投入運用后，黃河下游在較長時期內受下泄清水影響，河道沖淤演變及排洪能力將會發生較大的變化。 -
Evident backward erosion had appeared in the coastline of the delta region in recent years owing to decreaseof flow and sediment from the yellow river
近年來黃河來水來沙呈遞減趨勢，現行河流路海岸線淤進減緩，原行河流路海岸線出現了嚴重的蝕退。 -
In recent years, cooking fume pollution is given to more and more attention. in this paper, the main pollutant compositions of cooking fume were analyzed, and some harm of cooking fume to human were introduced. five kinds of treatment technology, inertia separation, filtration separation, soak removal, electrostatics sediment and complex technology, were introduced and compared. some applied examples were also indicated
分析了油煙中的主要污染物成分，介紹了油煙對人體健康的幾種危害，並對現有的五種處理技術:慣性分離、過濾分離、洗滌去除、靜電沉積、復合技術進行了詳盡的分析比較，列舉了一些應用實例。 -
After a comprehensive review on the study of sediment density current in the recent several decades, a set of differential equations for 2 - d density current under double - layer computational mode is established. by simplifying th. set of equations, a 2 - d numerical simulation of sediment density current and sediment outflow has been made in the liujiaxia reservoir in the yellow river basin, and the result is reasonable
本論文在對異重流運動近幾十年來的研究成果進行較系統、全面論述的基礎上，針對目前研究較為前沿的異重流運動數值模擬問題，提出了一套二維異重流雙層計算模式下的基本方程，並在這套方程簡化的基礎上，對黃河流域劉家峽水庫中的異重流運動和排沙進行了二維數值模擬，結果令人較為滿意。 -
In the recent years numerous scientists have found that there appeared many abrupt climatic changes during the last glacial by studying the high - resolution achieves of environmental change such as polar ice - core, deep ocean sediment and loess - palaeosol sequence et al
近十幾年來，隨著研究技術和方法手段的進步，許多科學家通過對極地冰芯、深海沉積物、黃土-古土壤等環境演化信息載體的研究，在末次冰期中發現了許多氣候突變事件。 -
Under the influence of dynamical factors such as earthquake and storm surge, the sediment failure on the submarine slope might be triggered to make considerable damage to the submarine structures, so more and more attention has been drawn to the submarine slope stability in recent years
摘要海底斜坡物質受地震、風暴潮等動力因素的影響，其強度變弱，發生失穩破壞，對海底工程設施具有較大的破壞性，引起人們的廣泛關注。
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