貧瘠條件 的英文怎麼說

中文拼音 [pínjítiáojiàn]
貧瘠條件 英文
oligotrophic conditions
  • 貧 : 形容詞1. （窮） poor; impoverished 2. （缺少; 不足） inadequate; deficient 3. [方言] （絮叨可厭） garrulous; loquacious
  • 瘠 : Ⅰ形容詞[書面語]1. （身體瘦弱） lean; thin and weak2. （不肥沃; 瘠薄） barren; poor; lean Ⅱ名詞（姓氏） a surname
  • 條 : Ⅰ名詞1 （細長的樹枝） twig 2 （條子） slip; strip 3 （分項目的） item; article 4 （層次; 秩序; 條...
  • 件 : Ⅰ量詞（用於個體事物） piece; article; item Ⅱ名詞1. （指可以一一計算的事物） 2. （文件） letter; correspondence; paper; document
  • 貧瘠 : poor; barren; infertile; infertility貧瘠帶 barren zone; 貧瘠地 barrens; 貧瘠地區 desert; 貧瘠土（...
  • 條件 : 1. （客觀的因素） condition; term; factor 2. （提出的要求） requirement; prerequisite; qualification
  1. The analysis of micro - climate site of the road greenbelt in the building process of expressway, a lot of calcareousness, powder of coal ash, asphaltum and stone were put into used. on one hand, it completely destroys the original soil structure, making the soil really barren, on the other hand, the rise of roadbed also affects the ground water to go up, making the soil very drought

    路體綠地立地條件分析高速公路在修建過程中，採用了很多的石灰、粉煤灰、瀝青、石塊等材料，一方面使原有的土壤結構被徹底破壞，土質十分貧瘠，另一方面路基抬高影響地下水位上升，土壤十分乾旱。
  2. The paper fristly compared the fertile soil with the incinerated sterile soil on the number of micro - algae, soil ph value, soil organic matter soil available phosphorus and soil nitrogen. and then, the author put fertile soil, which included micro - algae, proportionally into sterile samples and cultivated them respectively under illumination condition ( micro - algae can live and reproduce ) and dark condition ( micro - algae will die in some time ). the above indices were measured in 0, 30, 60 and 90days respectively, the analyse of the interrelation between the change of micro - algae ' s number and the changes of soil ph value, soil organic matter, soil available phosphorus and soil nitrogen indicated : ( l ) soil micro - algae which were native to fertile soil conld adapt to the changed circumstance and light acted as a decisive role to the distribution of soil micro - algae. under dark condition, the micro - algae ' s number declined gradually and went to zero in the end, while under illumination condition, on the 90th day, the micro - algae ' s number of per gramme was 6 - 7 times more than that of the beginning

    本文首先對肥沃土壤與經高溫焚燒后的貧瘠土壤中的微藻數量、土壤ph值、有機質含量、有效磷含量和全氮量進行比較研究，然後將包含微藻的綠化苗圃地肥土按不同比例接種進入貧瘠土樣中，分別在光照條件和黑暗條件下進行培養，在0天、 30天、 60天和90天分別檢測以上指標，比較有光條件和無光條件下，即有藻條件和無藻條件下貧瘠土樣所發生的變化，並分別對微藻數量的變化與土壤ph值、有機質含量、有效磷含量和全氮量的變化之間做相關性分析，以評估肥沃土壤中的微藻接種進入貧瘠土壤后的生長情況以及對貧瘠土壤的改良作用。研究結果表明： （ 1 ）土壤微藻對環境有較強的適應能力，且光照對其分佈起了決定性的作用。
  3. He said one example is genetically changed crops that will grow in extreme temperatures, dry conditions or poor soil

    他說例子之一就是能在更極端的溫度，更乾旱的條件和更貧瘠的土壤生長的轉基因作物。
  4. Although this kinds of drought - resistance germplasm have a low absolute yield, their fertility and stability of yield under drought and infertile condition preceded crossbreed

    這類地方種質的絕對產量不高，但其穩產性和在乾旱貧瘠條件下的豐產性優于雜交種。
  5. ( 2 ) through consuming co2 and secreting alkaline matters from their cellls to soil, micro - algae can improve soil ph value, and transform the weak acid soil into weak base soil. ( 3 ) through photosysthesis transforming co2 into organic matters, micro - algae can increase the content of soil organic matter

    肥沃土壤中的微藻接種進入貧瘠土壤后，在黑暗條件下逐漸死亡，有光條件下的微藻經過一段時間的適應后，到第90天時，每克土中的微藻數量增長到接種量的7 - 8倍。
  6. Besides policy factors, five methods of cost - cutting of biodiesel are reviewed, including new raw material with higher oil content, shorter regeneration cycle, which is suitable for infertile soil and different climatic conditions ; heterogeneous catalysts ; new technologies ( e. g. supercritical methanol and ultrasonics ) ; higher added value utilization of by - product glycerin with simple method ( propylene oxide chloride, 1, 3 - propanediol, pyruvic alcohol etc. ) and moderate scale of production

    摘要綜述了除政策因素外，降低生物柴油生產成本的5種方法：選擇含油率高、再生周期短、適應貧瘠土地及不同氣候條件的新型植物原料；研究新型固體催化劑；引入新工藝（超臨界法和超聲波法） ；使用比較簡便的方法將廢棄的甘油轉化為高附加值的產品（環氧氯丙烷、 1 ， 3 -丙二醇、丙酮醇等）以及適度生產規模等。
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