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phosphorus enrichment
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  磷的富集
     The high corrosion resistance of the amorphous Ni-P alloy deposits is attributed to the phosphorus enrichment on the surface and formation of a protective barrier layer as a hypophosphite anion or a compound Ni_2P.
     文中还指出,非晶态Ni-P合金高耐蚀的原因,是由于合金表面磷的富集,生成次亚磷酸根阴离子(H_2PO_2~-)或Ni_2P化合物的“保护层”,使合金进入“钝性”状态。
短句来源
     The Late Sinian microbiolite and its phosphorus enrichment in Central Guizhou Province
     黔中晚震旦世微生物岩及其磷的富集
短句来源
  “phosphorus enrichment”译为未确定词的双语例句
     According to the raw materials used for sinter production at Taigang,the laboratory tests were conducted The results showed that the sintering technical economic indexes will be better with addition of reasonable converter The problems concerning the phosphorus enrichment in down stream processing are discussed
     结合太钢目前的烧结原料条件进行了不同钢渣配比的烧结试验研究 ,结果表明 :适宜的钢渣配比可改善烧结技术经济指标 ,同时对因配用钢渣后部工序磷富集问题也进行了探讨
短句来源
     Result indicated that P.massoniana roots of different provenances had an effect of soil phosphorus activation and available phosphorus enrichment,especially both provenances of Xinyi GD and Wuping FJ,which could preliminarily explain their genetic mechanism of adaptation to phosphorus stress.
     不同种源根际对土壤中的磷都具有活化作用和富集作用 ,尤其是广东信宜和福建武平两种源对土壤磷的活化和富集作用最为强烈 ,这可初步解释这两个种源对磷肥不敏感、能适应低 (缺 )磷胁迫的遗传机制。
短句来源
     Nitrogen and phosphorus enrichment occurred in each land use patterns,and the enrichment ratios in Chinese chestnut land and orange land were highest,while paddy field lowest.
     各样地侵蚀泥沙中N,P养分有明显的富集现象,板栗园和橘园N,P养分富集率高于其他样地,水田N,P养分富集率最低。
短句来源
  相似匹配句对
     Study on the enrichment and cultivation of denitrifying phosphorus removing bacteria
     反硝化聚磷菌群的培养驯化
短句来源
     and total phosphorus.
     (2) 测定了微生物量磷组分。
短句来源
     The Late Sinian microbiolite and its phosphorus enrichment in Central Guizhou Province
     黔中晚震旦世微生物岩及其磷的富集
短句来源
     Agrochemistry of Phosphorus()
     磷的农业化学(Ⅳ)
短句来源
     job enrichment;
     工作丰富化,加强员工工作创造性;
短句来源
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  phosphorus enrichment
The primary mechanism of grain boundary phosphorus enrichment does not appear to be equilibrium segregation, and an alternative mechanism based on the decomposition of P rich precipitates is proposed and discussed.
      
Embrittlement of austempered nodular irons: Grain boundary phosphorus enrichment resulting from precipitate decomposition
      
Phosphorus enrichment in the surface of Fe-P particles was also found.
      
The effect of phosphorus enrichment on the nutrient status of a northern Everglades slough
      
Interactive effects of seed availability, water depth, and phosphorus enrichment on cattail colonization in an Everglades wetlan
      
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The central Guizhou Doushantuo phosphorite has been systematically studied with respect to its lithology,mineralogy, environment and mechanism of phosphate enrichment. A new principle of classification, namelythe "texture-composition-genesis"combined classification has been proposed. The role of CO_2, its occurencesand evolution trend in phosphate minerals have been investigated in detail. The author concludes that theshallow water platform margin zone is the most favourable place for phosphate enrichment. The...

The central Guizhou Doushantuo phosphorite has been systematically studied with respect to its lithology,mineralogy, environment and mechanism of phosphate enrichment. A new principle of classification, namelythe "texture-composition-genesis"combined classification has been proposed. The role of CO_2, its occurencesand evolution trend in phosphate minerals have been investigated in detail. The author concludes that theshallow water platform margin zone is the most favourable place for phosphate enrichment. The ore-form-ing process consists of at least three steps: (1) sea floor volcanism providing with phosphorus source, (2)organism helping its accumulation, (3) a series of other factors favouring phosphorus enrichment. Re-gional geological controlon the phosphorite formation is also discussed.

本文运用多学科的理论和方法,研究了黔中陡山沱期磷块岩的岩石学、矿物学特征、富磷环境、成磷机制等。提出了磷块岩的“结构-成分-成因”综合分类方案,阐述了磷酸盐矿物中CO_2的存在形式和演变趋势;指出了浅水台地边缘高能带是磷酸盐富集的有利场所;论证了海底大山供磷、生物沉磷和多因素富磷的成矿过程;最后探讨了区域地质演化对磷块岩成矿的控制。

Ni-P alloys with four different phosphorus content were electrodeposited. The immersion tests and electrochemical measuring results showed that theamorphous Ni-P alloy deposits (≥P16.7%(at)) possess excellent corrosion resistance compared with crystalline fcc Ni-8.7P deposit and pure Ni deposit,and the corrosion rate decreases with increase of phosphous content in alloys. The high corrosion resistance of the amorphous Ni-P alloy deposits is attributed to the phosphorus enrichment on the surface and formation...

Ni-P alloys with four different phosphorus content were electrodeposited. The immersion tests and electrochemical measuring results showed that theamorphous Ni-P alloy deposits (≥P16.7%(at)) possess excellent corrosion resistance compared with crystalline fcc Ni-8.7P deposit and pure Ni deposit,and the corrosion rate decreases with increase of phosphous content in alloys. The high corrosion resistance of the amorphous Ni-P alloy deposits is attributed to the phosphorus enrichment on the surface and formation of a protective barrier layer as a hypophosphite anion or a compound Ni_2P.

用电化学的方法制备了四种不同磷含量的Ni-P合金镀层。腐蚀试验结果表明,在IN盐酸溶液中高磷含量非晶态合金(≥16.7%P)具有比含有晶体的Ni-8.7P合金和金属镍优越得多的耐蚀性,其腐蚀速度随着磷含量的增加而战小。文中还指出,非晶态Ni-P合金高耐蚀的原因,是由于合金表面磷的富集,生成次亚磷酸根阴离子(H_2PO_2~-)或Ni_2P化合物的“保护层”,使合金进入“钝性”状态。

West Lake in Hangzhou is a small shallow lake. Its surficial sedimentary stratum is composed of algae faulschlamm layer and peat layer, and is mainly characterized by high organic carbon content and extreme high nitrogen content, but by relatively low degree of phosphorus enrichment.

杭州西湖是一个小型浅水湖泊,底泥由上部藻骸腐泥和下部泥炭层构成,其显著特点是有机碳含量特别高,氮含量也相当高,而磷的富集程度相对较低。通过实验室和现场模拟研究,考察了pH值、温度、溶解氧、氧化还原电位及上覆水种类等环境因素对底泥释磷量和释磷速率的影响。上覆水pH值在6.5—7.0范围内底泥释磷量最低;在较高或较低pH值时,释磷量倍增。升高水温或降低上覆水溶解氧浓度均能加速释磷。实验室模拟西湖底泥最大释磷量为0.368μgP/g。夏季现场模拟平均释磷速率为1.02mg P/m~2·d;由此估算底泥释磷量达1.346tP/a,相当于年平均外部入湖磷负荷的36.4%。底泥释磷对西湖富营养化起着不容忽视的影响。

 
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