metal accumulation 中文意思是什麼

metal accumulation 解釋
金屬累積作用
  • metal : n 1 金屬;金屬製品;金屬合金。2 【化學】金屬元素;(opp alloy);金屬性。3 【徽章】金色;銀色。4 ...
  • accumulation : n. 1. 積累,堆積;累積物。2. 〈英大學〉高低學位的同時獲得。
  1. Along with development of mining in this region, abnormity of heavy - metal endogenetic geochemistry change to heavy - metal inchoative geochemistry, which lead to accumulation and diffusion of heavy metal in mine region of red soil and great red soil area, serious degradation of soil caused by heavy metal pollution, and mine ecological system destroy

    隨著有色金屬采礦業的發展,重金屬的內生地球化學異常轉化向表生地球化學異常。由此,使紅壤礦區土壤乃至大面積紅壤中重金屬積累擴散,造成土壤重金屬污染退化加劇,生態系統遭受嚴重破壞。
  2. This paper reviews the formation and feature of iron and manganese plaque, alleviation of metal ( loid ) toxicity via adsorption and accumulation, eutrophication purification, plant acid proof and barren resistance

    文章綜述了植物根表鐵錳氧化物的形成與特徵,對有害金屬和類金屬污染物、有機污染物的吸附和富集作用,對富營養化水體的凈化作用,以及提高植物的耐酸和耐貧瘠能力。
  3. Taken two heavy metal contaminated soils in copper mine field of hongtoushan area and lead - zinc mine field of qingchengzi area as sampling sites, studied the abundance and diversity of amf community and the relation of which to ecological factors ; two experiments were managed by pot culture and four - compartments culture system with festuca. rubra and red clover as host plants inoculated with gintraradices, gmosseae and gcaledordinum to study the effect of different amf on the uptake and accumulation of heavy metal in cd contaminated soil and cu > zn - pk cd complex - contaminated soil

    採用盆栽、四室根箱培養的方法,研究了接種g . intraradicesg . mosseae和g . caledordinum在cd污染和cu 、 zn 、 pb 、 cd復合污染土壤中對紫羊茅、三葉草吸收、累積重金屬的影響,明確了叢枝菌根菌在重金屬污染土壤生物修復中的作用。主要結果如下: 1 、沈陽礦區重金屬污染土壤中,共發現叢枝菌根菌6個屬23個種,已鑒定22種, 1個未定種。
  4. The colonization of gintraradices, gcaledordinum and gmosseae can decrease the uptake and accumulation of heavy metals of festuca. rubra and red clover and then protect them from toxicity of heavy metals to some extent. there were consistent difference amongthe effect of different amf species, gintraradices had better effect on the decrease of heavy metal content in shoot of host plants than gcaledordinum and gmosseae

    能明顯降低紫羊茅、三葉草體內重金屬山根系向地上部的運輸,在某種程度上減少了高濃度重金屬對植株的影響,有利於紫羊茅和三葉草在重金屬污染土壤中定植。不同菌種的菌根效應有較大差異,菌種gintraradice :在減少重金屬由根系向地上部運輸的作用上優于菌種gcaledordinum和gm口sseae 。
  5. A survey of literature shows that little study has been done on uptake of pollutants by plants from the polygonaceae, and that the reports about their physiological and biochemical characteristics under heavy metal stress were sporadically seen. a batch of sand culture and soil culture experiments were carried out to investigate heavy metal and radiocesium uptak e and accumulation by rumex acetosa linn, polygonum microcephalum d. don, and rumex hastatus d. don widely distributed on copper mining areas, and their physiological and biochemical characteristics under cu zn stress, as well their potentials in application to phytoremediation

    本論文以廣泛生長于銅礦區的蓼科植物酸模、小頭蓼和戟葉酸模為試驗材料,運用砂培、土培等方法,研究它們對重金屬( cu 、 zn )以及放射性核素( ~ ( 134 ) cs )的吸收和積累特性以及cu 、 zn脅迫條件下它們的生理生化特徵,初步探討它們在無機污染物污染土壤植物修復中的應用潛力。
  6. Main content in simulation is the spatio - temporal evolution of the set of descriptive variables characterizing tectonic mineralization state under coupling of various processes as following : ( 1 ) variables related to forming and property of ore - forming fluid, such as dissolution rate of minerals ( include metal minerals ) in rock, concentration and saturation of aqueous species in fluid, temperature, pressure, and ionic strength etc. ; ( 2 ) variables related to structural deformation and fluid flow, such as stress, deformation rate, fracture network, porosity, fracture permeability ; ( 3 ) variables related to precipitation and mineralization, such as nucleation rate of gangue and metal minerals, accumulation precipitation of various minerals, etc. ; ( 4 ) spatio - temporal coupling relation of various variables above, such as the coupling relationship between spatio - temporal evolution of fracture permeability and flow and focus of fluid and ore - forming

    模擬的主要內容是在各種過程耦合作用下,以下描述構造成礦體系的主要變量的時空演化:與成礦流體的形成和性質有關的變量,如地層中礦物(包括成礦物質)的溶解速率、流體中各組分的濃度與飽和度、流體溫度、壓力、離子強度等;與構造變形和流體運移有關的各變量,如應力與變形速率、巖石孔隙度、構造(斷裂)滲透率等;與沉澱成礦有關的變量,如礦物(金屬礦物和脈石礦物)的成核速率、各礦物的沉澱量等;上述各有關變量間的時空耦合關系,如斷裂滲透率時空演化與流體流動、匯聚和成礦的耦合關系等。
  7. The paper analyzed the soil pollution in the farmland affected by chemical fertilizer, which included increasing the quantity of heavy metal and poisonous elements, causing the accumulation of the nitrates in the soil, destroying the soil structure, promoting the soil acid, reducing the soil microorganisms and the movement of them

    摘要分析了化肥對土壤環境產生的不良影響;增加土壤重金屬與有毒元素;導致土壤硝酸鹽積累;破壞土壤結構,促進土壤酸化:降低土壤微生物活動。
  8. ( 2 ) along the intertidal zone, the lower of contents of heavy metal exponentially, the farther is from sewage sources. ( 3 ) the concentrations of heavy metal decrease inch by inch from high tidal flat to the middle and low intertidal zone. it is water dynamics that impact on the accumulation features of heavy metals of intertidal

    如河套是這五個區域中唯一的非河口區,潮間帶沉積物重金屬含量全灣最低;大沽河1東營鹽場段緊鄰大沽河河口,大沽河2營海段遠離河口,後者重金屬含量普遍低於前者。
  9. After adding la3 + and ce3 +, the enhancement of relative membrane penetration ( rmp ) by heavy metal stress was reduced, the peroxidation of membrane lipids was alleviated and to some degree protected the membrane from injury by heavy metal ions, thus utimately promote the tolerance ability of plants to heavy metal stress. mesurement of element consentration by icp - ms method showed that rare earths could decrease the accumulation of heavy metal ions in the plants through competition effect

    在受重金屬離子污染的培養液中施加la ~ ( 3 + ) , ge ~ ( 3 + )后,與單一重金屬毒害相比, la ~ ( 3 + )和ce ~ ( 3 + )有效抑制了重金屬脅迫引起的細胞膜透性增加,使膜脂過氧化水平減弱,從而延緩了對膜的損傷,最終增強了對重金屬離子的抗性。
  10. Interactive effect of genotype and enviromnent on the genetic covariance of characterization of heavy metal accumulation in edible rice grain oryza sativa l

    基因型與環境互作對食用稻米重金屬積累特性遺傳相關性的影響研究
  11. This paper briefly reviews the history and progress of trace metal marine ecotoxicology over the past few decades. three main areas of metal ecotoxicology are transport in the environment, accumulation and toxicity, as well as the risk assessment. we have seen tremendous progresses in these areas as a result of interdisciplinary efforts by biologists, chemists, engineers, governmental regulators and managers. i then discuss the future perspectives of metal ecotoxicology. it is expected that this field will receive increasing attention in china. certainly i hope that xiamen can become a center for metal ecotoxicology and biogeochemistry research

    簡要回顧了痕量金屬的海洋生態毒理學研究的歷史及過去幾十年中所獲得的進展.金屬生態毒理學研究主要包括以下3個方向:環境中的轉移,毒性積累及危險評估.在來自於多種學科的專家,包括生物學家,化學學家,工程師和政府監督管理人員等的共同努力下,這3個方向的研究都獲得了長足的發展.同時對金屬生態毒理學的未來進行了展望.可以預見的是,這門學科將在中國受到越來越多的關注.我更希望看到廈門能夠成為未來金屬海洋毒理學發展的中心
  12. The random analysis of structure under fatigue loading, the statistic finite element method ( sfem ) for fatigue reliability, random fatigue damage accumulation theory and fatigue reliability of structure system were studied in this paper with regard to the metal structure of engineering machine

    本文以工程機械金屬結構為對象,探討了疲勞載荷下的隨機結構分析、隨機有限元計算構件疲勞可靠度的方法、隨機疲勞累積損傷理論、系統疲勞可靠性分析。主要工作有: 1
  13. The accumulation of four kinds of heavy metal ion also been investigated

    在重金屬吸附試驗的研究當中。
  14. After 5 - hour biosorption, the removal concentration of pb ion is reach to 80 percent. the accumulation sequence of these heavy metal from high to low is pb2 +, zn2 +, cd2 +, cu2 +

    發現藻體的細胞對四種重金屬均有不同程度的吸附,其中5小時內鉛的去除率可以達到80以上。
  15. The prediction model of silicon content in hot metal tapped from blast furnace based on self - organized experience evolution is composed of following components : feature extraction and vector quantification of temporal process data, memory, storage, accumulation and evolution of the prediction experience

    高爐鐵水硅含量自組織經驗進化預測系統主要由動態數據特徵提取、動態模式自組織分類量化以及預測經驗的記憶、存儲、積累和進化三部分組成。
  16. The uptake of dissolved metals, a potentially significant source for overall metal accumulation in bivalves, is liable to be influenced by biotic and abiotic factors

    摘要對溶解態重金屬的吸收是貝類累積重金屬的重要來源之一,易受到生物因素和非生物因素的影響。
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