鹽水侵 的英文怎麼說
中文拼音 [yánshuǐqīn]
鹽水侵
英文
salt water contamination-
A problem which is often attacked by resistivity measurements is to locate the depth at which saltwater invades fresh water in aquifers.
經常用電阻率測量來攻克的問題是確定含水層中鹽水侵入淡水的深度。In consideration of the crises of both the industrial water and the domestic water in the estuarial areas of the yangtze river caused by the decrease of the channel runoff and the intrusion of the sea water during the dry season in dry year, the concept, method and planning framework of the water resources allocation for the areas mentioned above along the main stem of the river are put forward herein based on the preliminary prediction of the future water demands by taking the water resources allocation therein during the dry seasons as the actual case in combination with the status quo of the water environment and water resources utilization concerned
摘要針對枯水年枯水季，因河道徑流量較少，鹽水入侵的頻率和強度顯著提高而引起的長江河口沿岸地區生產生活用水安全，文中結合長江口地區水資源利用和水環境現狀，以大通以下長江幹流地區在枯水季水量分配為實例，在初步預測未來河口地區水資源需求的基礎上，提出長江口地區水資源配置的思路、方法及方案框架。There is correspondence in evaluating sulfate resistance of cement paste by three test methods such as rapid boiling, gypsum mixing and wet - dry test. high strength grade cement can meliorate property of sulfate resistance
外摻石膏法、干濕交替法以及快速沸煮法三種實驗方法對評價水泥砂漿的抗硫酸鹽侵蝕性能有較好的一致性；高標號水泥品種對抗硫酸鹽侵蝕性能有很好的改善作用。Rapid test for sulphate resistance of cement
水泥抗硫酸鹽侵蝕快速試驗方法They are natural factor and anthropic factor. the former one consists of climatic factor, hydrological factor, pelagic factor etc. the latter one includes petroleum industry, angriculture, salt industry and aquaculture and so on
自然因素主要包括氣候因素、水文因素、海洋因素（海水的侵蝕、海平面的上升）等;人為因素主要包括石油工業、農業、鹽業和養殖業發展的影響。Shipment traffic usually is heavy in littoral area, the navigation capability is required in many riverway. navigation lock was set to suit for the water level ' s variety caused by tide. for a long period, being lack of the quantified assessment on the influence of saltwater intrusion, approaches that freshwater is inpoured to the lock chamber are adopted lest the high concentration salt water be imported to the inland waterway, when the navigation lock is in operation. but such manner should not be reasonale enough
沿海地區船運發達，很多河道有通航要求，為克服潮汐造成的水位變化而設置船閘。長期以來，由於缺乏對鹽水入侵內河河道產生影響的定量評估，在船閘運行過程中為防止高鹽度鹹水入侵內河，通常採用將內河淡水打入閘室的方式來調節通航水位，船閘的這種運行方式不盡合理。This paper unfolds engineering disposition and theoretical research of negative temperature high performance concrete ( nthpc ) with the damage of many factors motivation, the project background based on qing - zang railway engineering, which is one of four - emphasized engineering during the tenth five - plan. due to the difference of environment of construction and service between nthpc and ordinary concrete, and therefore durability of nthpc is required to higher level. at a first, nthpc must avoid frozen damage at early age and possess anti - freezing property at later period, in order to meet engineering practicable application need, and this are two emphasized and difficult problems, as for nthpc ; by means of mechanism analysis about deicing - agent ingredient and anti - freezing at early period, adopting composite technique routine of mineral addition + anti - freezing element + water - reducer4 - air - entraining + anti - erosion of steel component etc, based on orthogonal experimental approach, fd - 1 composite functional admixtu re was manufactured, which has more property and orientation on qing - zang railway
負溫混凝土由於和普通混凝土在施工環境及服役環境上存在的差異，因此表現為比普通混凝土更為較高的耐久性要求；負溫混凝土首先要避免早期的凍害以及具備長期抗凍性能，才能夠滿足工程實際應用的要求，這也是負溫混凝土必須解決的兩大技術關鍵；通過對目前常用防凍劑組分作用機理的分析研究及混凝土早期防凍機理探討，採用礦物外加劑+防凍組分+高效減水劑+引氣+阻銹組分功能復合的技術路線，通過正交試驗設計復配了適應青藏鐵路工程要求的專用多功能復合型外加劑fd - 1 ；並在此基礎上配製不同等級負溫高性能混凝土，開展一系列包括硫酸鹽侵蝕、氯離子滲透、抗凍融循環、收縮及耐磨性等耐久性能研究；通過對fd - 1組分和摻量的調整，優化負溫混凝土在施工特性、力學指標和耐久性三個方面的兼容、協調性。Raw optical glass. resistance to attack by aqueous alkaline phosphate - containing detergent solutions at 50 degrees celsius. testing and classification
未加工的光學玻璃. 50下含洗滌劑溶液的含水堿性磷酸鹽的侵蝕抗性.試驗和分類Alkali basite, which came from upper mantle or lower crust, invaded through those structure, which not only bring cu et al mineralizing elements, but also the most important is that thermal energy. it cycled the formation water ( yinmin fonnation and luoxue formation ), and form alkali - rich, middle - high temperature and salinity fluid mixed with alkali - rich magmatic water. there were high rate of percolation and well voidage in the contact zone between yinmin purple stratum and yinmin rubblerocks, which is in favor of the transposition and mineralization of minerogenetic fluids
因此，總結東川稀礦山式銅礦成礦模式為沉積（ fe 、 cu ） ?熱液疊加（ cu ）改造：晉寧-澄江期，小江深大斷裂發生走滑運動，在東川礦區造成右行旋扭及其派生構造，形成「 z 」字形落因破碎帶，同時來自深源（下地殼或上地幔）堿基性巖漿侵入，不僅帶來了大量cu等成礦物質，更重要的是提供了熱源，促使地層水（落雪組白雲巖和因民組紫色層）循環，與富堿（ na和k ）巖漿水混合，形成富堿中高溫高鹽度流體。The root of mangrove can prevent coast from erosion. the abundant ground water layer also can prevent seawater from incursion and salty
紅樹林的根有防止海岸侵蝕及流失的功能，其豐富的地下含水層還可避免海水入侵，防止地下水鹽化。With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion
研究結果表明：通過對rpc各組分摻量變化的研究，可以找到rpc的最優配合比；試件成型后的熱養護制度對rpc的性能影響巨大； rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況，剛纖維的摻入可以大幅改善rpc的韌性； rpc在成型后存在較大的收縮，而其中的化學收縮要遠遠大於乾燥收縮； rpc具有很強的抗氯離子滲透性能，漿體的密實度很高；通過x射線衍射實驗，可以發現rpc的膠凝體中ch晶體已經幾乎不存在，膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成；在抗溶液侵蝕的實驗中，摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件，酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用，但是機理各有不同。Sulfate attack on cement mortar containing limestone powder at lower temperature
含石灰石粉水泥砂漿在低溫環境中的硫酸鹽侵蝕Effects and mechanisms of mineral admixtures on sulfate attack of cement mortars
礦物摻合料對水泥砂漿硫酸鹽侵蝕的影響及機理With the addition of the mineral additives, the structure of the cement paste can be improved and the resistance of sulfate attacks can be advanced
摻入摻和料可以改善水泥漿體的結構，明顯提高混凝土的抗硫酸鹽侵蝕能力。Calcium phosphates ( cp ) have been studied extensively for cell cultures and have been found to possess good osteoconductive properties. cp can be dissolved in vivo and be absorbed or displaced by tissue. the degradation rate of cp varies in different crystalline phases, which enables to adjust the degradation rate of biomaterials
鈣磷酸鹽如磷酸三鈣具有骨誘導性，在體內有較大的溶解度，易發生水化作用，並通過體液的侵蝕和細胞的吞噬作用被機體部分或完全吸收而被取代，不同晶型的鈣磷酸鹽在體內的降解速率不同，可調整材料的降解速率。Qualitative analysis on the effect of flood control and engineering safety -, seizing lots of water conservancy effective adjust storage. then making water level risen and reservoir backwater enlarged in the same flow level ? effect on beach and the buildings across river, soil salinization caused by flow from a lower to a higher place and unsmooth groundwater drainage destroy of travel resource caused by disorder enclose tideland for cultivation in reservoir silt up flood plain are given, then presents enclose tideland for cultivation dyke is important cause which water level rise in reservoir
本文從青銅峽水庫泥沙淤積入手，分析水庫泥沙淤積特性和庫區圍墾堤開發利用淤積灘地的現狀，對防洪安全及工程安全的影響、侵佔大量的有效調蓄庫容、造成同級流量下水庫水位抬升水庫回水上延、對沿岸及過河建築構成影響、因水位抬升致使庫區周邊灌區地下水排水不暢乃至倒灌而造成土地鹽堿化、對水庫庫區大量淤積灘地無序圍墾造成旅遊資源破壞等五方面影響的定性分析，提出庫區圍墾堤是水庫水位抬升的重要原因。Effects of the runoff and the tidal flow on the invasion of salt water with four kinds of hydrologic conditions are simulated by use of a two - dimensional salinity mathematical model for the yangtze river estuary
摘要利用長江口平面二維水流鹽度數學模型，模擬計算了4種水文組合條件下徑流和潮流對鹽水入侵的影響。Besides the aridity climate, the reason caused the high salinity of the lake water possibly was the frequent transgression in the early and middle permian
造成湖泊水鹽度較高的原因，除了乾旱的氣候外，認為主要是由於早、中二疊世三塘湖地區頻繁的海侵作用造成的。Salt - water intrusion in water source of yangtze mouth in shanghai and how to deal with it
上海市長江口水源地鹽水入侵影響及對策研究Influences of the inclined pressure item caused by salinity - gradient on the flow and those of the deepening of the channel on the invasion of salt water are analyzed by use of a three - dimensional salinity mathematical model for the north channel of the yangtze river estuary
利用長江口北槽三維水流鹽度數學模型分析了鹽度梯度引起的斜壓項對水流的影響，以及航道增深對鹽水入侵的影響。分享友人