river sand 中文意思是什麼

river sand 解釋
河沙。

  • river : n 1 河，江。 Rriver Thames 或 the R Thames 泰晤士河； the Hudson R 〈美國〉哈得孫河。 the Rriver ...
  • sand : n 1 沙。2 〈 pl 〉 沙灘，沙洲，沙地，沙漠。3 〈 pl 〉 沙粒；（計時用的沙漏中的）細沙。4 光陰，時...
  1. Individual sand bodies, filling erosional features cut by a river, may be elongate or arcuate depending on the course of the river.

    充填在河流切割形成的侵蝕地貌中的各個砂體，在形狀上可以是伸長狀的或弓形的，這要決定於河流的河邊。
  2. The main contents include : water environment, marine sediment and the trend monitoring of marine life quality ; at the same time, to consolidate the monitoring of the functional zones, such as seashore bathing places, oceanic reserves, marine aquafarms ; to set up the seashell monitoring and controlling zones in the sea areas of both pingtan and yunxiao at the first time ; to carry out the statistical monitoring of polder, exploiting sea sand, spartin aallerni flora, terrestrial sewages, etc., to carry out monitoring of the total quantity of pollutants into the offshore marine areas in the min river, the jiulong river as well as the municipal sewages of xinlin industry in xiamen and jiaocheng in ningde ; to carry out the red tide monitoring in the offshore marine areas of fujian province ; to implement time - lapse, pointing and continuous red tide monitoring of high frequency and high intensity in the sandu gulf, the min river estuary and offshore marine areas of xiamen

    主要內容包括水環境、海洋沉積物和海洋生物質量的全海域環境趨勢性監測，同時加強了海水浴場、海洋保護區、海水增養殖區等功能區監測；首次在平潭和雲霄海域設置了貝類監控區；開展了圍填海、海砂開采、互花米草、陸源排污口統計監測；並在閩江、九龍江、廈門杏林工業排污口、寧德蕉城市政排污口鄰近海域開展污染物入海總量監測；在全省近岸海域開展赤潮監視監測，對三都灣、閩江口、廈門近岸海域赤潮監控區實施高頻率、高密度的定時定點連續監測。
  3. By using the yearly data of water - sand that is gotten by a couple of adjacent hydrologic station in yellow river lower reaches, this paper makes use of kinds of math methods looking for the nonlinear disturbance among all of the factors, and introduces the thinking of analysis, logic, conclusion, inference, and random to nonlinear hydrologic forecasting. it realizes the valid approximation of the water level process in erodible - bed channel

    本文選擇黃河下游兩對相鄰水文站多年水沙資料，藉助多種數學方法尋找其中的非線性擾動項，將隨機數學中分析、邏輯、歸納、演繹、隨機的思考問題方式引入到非線性水文預報中，實現沖淤河道相應水位過程的有效擬合。
  4. At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel

    首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。
  5. Paris set out to prove you can, importing sand, palm trees and sunbeds for a repeat of last year ' s " paris - plage " experiment that lured over two million sun - worshippers to the concrete - lined banks of the river seine

    巴黎開始向人們證明這能夠做到。巴黎市效仿去年的"巴黎海灘paris - plage " ，引進沙灘棕櫚樹和日光浴床在市內修建了海灘。
  6. They hold river sand, pieces of iron and wood charcoal

    他們裝設有水沙子，鐵片和木炭。
  7. While working in the shadow of the iron bridge, he tried his luck by dipping a pan into the river sand

    當他在鐵橋下陰涼處幹活時，隨手把淘金盤浸入河沙中淘了淘，想碰碰運氣。
  8. The best substrate for broom is river sand, followed by mountain soil and perlite. the time and humidity are the other two factors studied

    扦插基質也影響生根率，結果表明，金雀花扦插以河砂為基質效果最好，山泥次之，珍珠巖效果最差。
  9. Aiming at the factors affecting the strength of paste filling material, the relation between affecting factors and strength of paste filling material is revealed on the basis of a lot of experiments in the lab, in which the river sand was used as skeletal material

    摘要針對影響膏體充填材料強度的因素，通過大量的試驗，揭示了以河砂為骨料的膏體充填材料強度與各影響因素間的關系。
  10. With the development of basic construction in our country, people pay more and more attention to the serious short of sand. the problem of transportation and time can be solved by producing hill sand in regions with abundant resource which can also lower cost and save river sand

    隨著我國基本建設的發展，各地砂源緊缺問題凸顯，人們對山砂的應用日益重視，對具有豐富山砂資源的區域，生產山砂可以解決運輸、時間上的問題，降低成本，節省資源。
  11. This research will try to resolve the distribution and controlling factors of gas layers by the study of division of substrata in bawu gas field. the main reservoir of bawu gas field are the sand layers in the formation of k1sh, k1y, k1d, k2q, sediment delta plane, delta frontier, plait delta developing distributary riverway sand, bayou sand dam, far sand dam and river sand of plait

    八屋氣田主要儲層為早白堊世的沙河子組（ k _ 1sh ） 、營城組（ k _ 1y ） 、登婁庫組（ k _ 1d ）及晚白堊世的泉頭組（ k _ 2q ） ，為三角洲平原、三角洲前緣及辮狀河三角洲沉積體系，發育分流河道砂、河口砂壩、遠砂壩、辮狀河道砂等，砂層在平面上連通性差。
  12. The daling river is a river of much bedload. the average of the loss sand can reach 21434. 3 thousandston, and the ratio is 18. 08 kg / m3. to this day, the ratio of sandiness by measuring in the biggest broken surface is 172 kg / m3. the baishi reservoir lies in the city named beipiao which in the middle reaches of the daling river in liaoning province, the income of the reservoir from the trunk stream is 11457 thousandston, and from the branch of the river is 1160 thousandston

    大凌河是個多沙河流，多年平均懸移質輸沙量可達2143 . 43萬噸，平均含沙量為18 . 08kg m ~ 3 ，實測最大斷面含沙量為172kg m ~ 3 ，白石水庫位於大凌河中游的遼寧省北票市，年入庫沙量，幹流為1145 . 7萬噸，支流?牛河為1160萬噸。
  13. 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。
  14. According to analysis of sedimentology, we think the most benefit environment to reservoir is under - water branch and river mouth bars microfacies, which often form thick sand bodies of high porosity of permeability

    從沉積相分析認為，有利於儲層發育的沉積環境是水下分流河道和河口砂壩微相，水下分流河道控制了砂體的走向及分佈區。
  15. A typical case study on the sand body to subaqueous distribution river course and its oil enrichment

    一個典型的水下分流河道砂體展布與油氣富集規律
  16. Study on salinity ' s effect on the sand analysis in the tidal river

    潮汐河段溶解質對泥沙分析影響研究
  17. By analyzing on nature, society and economy conditions as well as distribution characteristics of sand source in the lower lhasa river valley, put forward a series of comprehensive renovation scheme to harness sand sources, mainly including dredging channel, planting farmland shelter - forest network, constructing arbor - bush - herb shelter forest and shifting sand stabilization, this scheme will not only control blown - sand threat, and improve local ecological environment ; at the same time, also lay the strong foundation for enlarging lhasa city space and effectively utilizing local resource, embody a sustainable thought on how to make comprehensive renovation in high cold valley region

    摘要在深入分析本區自然社會經濟條件和風沙源分佈特徵基礎上，提出把拉薩河下遊河道疏浚與風沙源治理相結合，以河道疏浚、農田防護林、喬灌草防風護沙林和流沙固定等物理工程、生物和機械措施為主體，進行風沙源綜合整治，一方面可有效控制風沙災害的威脅，改善河谷區生態環境，同時為拉薩市城市空間發展和當地資源的有效利用奠定了基礎，體現了在高寒河谷區進行風沙源綜合整治的可持續性思路。
  18. According to the abundance well logging, mud logging and core analysis data, gaotaizi reservoir has been classified into four sand group with the principle of cycle comparison and classified control. based on the detailed study of lithologic character, sedimentary structure, paleontologic fossils, depositional sequence, rock association and logging data, the microfacies of the studied area are divided into such seven types : subaqueous distributary channel microfacies ; river mouth bar microfacies ; subaqueous interdistributary channel microfacies ; subaqueous crevasse channel microfacies ; subaqueous natural barrier microfacies ; distal bar microfacies ; delta front sheet sand microfacies. the characteristic of each sedimentary microfacies are described detailedly

    通過研究大量測井、錄井資料和巖芯資料，依據「旋迴對比，分級控制」的原則，把研究區高臺子油層劃分為g 、 g 、 g 、 g四個砂層組。通過對研究區巖性、沉積構造、古生物、沉積序列、巖石組合及測井曲線特徵進行研究的基礎上，認為研究區高臺子油層屬於三角洲前緣亞相沉積，並將研究區沉積微相劃分為：水下分流河道、河口壩、水下分流河道間、水下決口扇、水下天然堤、遠砂壩、席狀砂等七種微相類型。
  19. That is, the evolvement of anhui reach of yangtze river was influenced by many kinds of factors : geomorphy is the elementary factor, and climate influence water and sand offered by river basin

    在此基礎上，分析了各影響因素對河道的影響作用。結果表明，皖江河道演變是各種因素綜合影響的結果：河流地貌巖性提供了河道演變的基礎和條件，氣候影響著來水來沙。
  20. The design strength of the new concrete is c40, which adopts 525 # common portland cement, the sand is middle wide river - sand, the radius of coarse aggregate is 10 - 30mm. the surfaces of the old concrete which are harnessed are divided into i, ii, iii three type faces

    Znfl ， ao新混凝土設計強度等級選用c40 ，採用525 』普通硅酸鹽水泥，砂是中粗河砂，粗骨料的粒徑為川30mm 。老混凝土表面處理后的表面分為1型面、 11型面、 ill型面三種類型。
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