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Deep evolution is an aggregate of many kinds of evolutions; it is a multifaced god, a creator with many arms, working by many methods, of which natural selection of variation is perhaps the most universal factor.
深奥的进化过程,实际上是由多种类型的进化过程所叠加在一起而总和而成的,它是那种具有多副面孔的神,一位长有多条臂膀的创造者,它通过多种不同的方法来进行它的工作,而在这些方法之中,对变异的自然选择,也许是一种应用最为广泛的因子而已。
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Deep evolution is an aggregate of many kinds of evolutions; it is a multifaced god, a creator with many arms, working by many methods, of which natural selection of variation is perhaps the most universal factor.
这种深入的进化过程,实际上是由多种类型的进化过程所叠加在一起而总和而成的,它是那种具有多副面孔的神,一位具有多条臂膀的创造者,它通过多种不同的方法来进行它的工作,而在这些方法之中,对改变的自然选择,也许是一种应用最为广泛的因子而已。
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But the effluent ammonium in the anoxic reactor, where enough NO2 were present, was equal to the blank system, and no ammonium was converted to such nitrogen compounds as NO2- and N2 by Nitrosomonas eutropha using NO2 as electron acceptor, which maybe caused by lack of the function bacteria. There were two ANAMMOX reaction pathways in the one-stage autotrophic nitrogen removal system. One way was that after part of NH4+ was oxidized to NH2OH under aerobic conditions, NH2OH and NO2- were converted to N2O under anaerobic conditions, at last N2O was further converted to N2 which realized the nitrogen removal; Another way was that at first NO2- was reduced to NH2OH, NH2OH reacted with NH4+ to form N2H4, which was further converted to N2 subsequently, realizing the nitrogen removal.
结果表明:单级自养脱氮系统内6.72%的氨氮是通过吹脱等物化作用去除的,不超过6.02%的氨氮是通过传统硝化反硝化途径去除的,87.26%左右的氨氮是由自养脱氮途径去除的,自养脱氮反应起主要脱氮作用;在足够NO2存在且缺氧的条件下,单级自养脱氮系统内的出水氨氮浓度与空白反应器相当,NH4+并没有被亚硝化单胞菌以NO2为电子受体氧化为NO2-和N2等化合物而得以去除,可能是因为系统内不存在该代谢功能的亚硝化功能菌;单级自养脱氮系统内存在两条ANAMMOX反应途径:其中一条途径即NH4+在好氧条件下被氧化为NH2OH后,生成的NH2OH与系统内的NO2-在缺氧条件下被转化为N2O,N2O则进一步被转化为N2而实现氮的去除;另外一条途径即NO2-首先被还原为NH2OH,生成的NH2OH则与系统内的NH4+反应生成N2H4,N2H4继续被转化为N2而实现氮的去除。
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Since classification of areas is pollutant-specific, the same geographic area may be a "clean air area" with respect to one pollutant but a "nonattainment" area with respect to another pollutant.
由于地区分类是根据某种具体的污染物而定的,在同一个地区内,针对某种污染物来说被划为&空气洁净区&,而对另外一种污染物而论,又会被划为&非达标&区。
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More experimental data of condensation heat transfer coefficient, especially ones obtained at some determined pressure of mixtures and concentration of noncondensable gases, are required in order to make a data bank. Therefore, the experiment is arranged for steam-air condensing on the outside of a horizontal smooth tube, and 405 data have been obtained for the pressure of the bulk mixture covering 0.1~0.5bar and the mass fraction of air 0.3%~10.0%.
得到了一些重要结论,尤其是首次得到了&同样含量的空气对压力较高的混合气体冷凝换热的削弱作用较小&、&蒸汽侧冷凝换热系数近似与空气质量成分的对数成正比关系&、&空气含量的增加对蒸汽侧冷凝换热系数的影响随壁面过冷度增大而减小&及&管内冷却水流速取值范围的上、下限随管外蒸汽侧空气含量的增大而减小&等结论,并验证了在本文实验范围内&蒸汽侧冷凝换热系数与相同温度下纯净饱和蒸汽凝结换热系数的Nusselt理论预测结果的比率随壁面过冷度增大而减小&的数值分析结论〓。
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D. Declaration of nonprimitive types such as String, Vector ans so on allocates memory space for the object.
但是严格来讲此题的答案有待确定,因为只有原始类型的实例变量和类变量的声明在类对象被创建/类被加载时完成内存的自动分配,而原始类型的局部变量必须显式初始化,从这点来看原始类型的局部变量没有被自动分配内存,SL275中只提出了非原始数据类型的变量必须使用new Xxxx完成内存的分配而没有指出原始数据类型的变量是否在声明时即自动进行内存分配,而从局部变量不能在显式初始化前使用这点来看在声明时没有进行内存分配。
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D. Declaration of nonprimitive types such as String, Vector ans so on allocates memory space for the object.
但是严格来讲此题的答案有待确定,因为只有原始类型的实例变量和类变量的声明在类对像被创建/类被加载时完成内存的自动分配,而原始类型的局部变量必须显式初始化,从这点来看原始类型的局部变量没有被自动分配内存,SL275中只提出了非原始数据类型的变量必须使用new Xxxx完成内存的分配而没有指出原始数据类型的变量是否在声明时即自动进行内存分配,而从局部变量不能在显式初始化前使用这点来看在声明时没有进行内存分配。
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Millisecond time scales in the X-ray light curve of Scorpius X-1. The estimated sizes of these occulting TNOs are about or less than 100 m. This is the first time that TNOs of such a small size are detected. Our discovery of the X-ray occultation demonstrates a new method to study smaller TNOs.
所以,我们在这里介绍了我们利用X-ray波段的掩星方法,藉由利用RXTE卫星观测天蝎座X-1的数据,在毫秒尺度找到了一些可能的X-ray掩星事件,而这方法将可让我们了解一些大小在100公尺左右或更小的物体的分布情形,而这也是我们第一次在X-ray波段所发现掩星事件,而这方法的持续研究将能让我们对於太阳系的形成会有更多的帮助,因次在此提出来和大家分享。
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It was different of contents of same mineral element inthe leaves of Malania olefera because of different areas, but the differences was notnotable. The influence of mineral element and soil elements on Malania olefera wasnitrogen, iron, manganese, zinc, potassium, copper from most to least, and four ofthem were belong to microelement. However, the lack of copper and serious lack ofzinc and iron in the soil influent the growth of Malania olefera. It had been made through the analysis of morphologic and anatomicalcharacteristics of root, stem, leaf, flower, fluid and seed that Malania olefera notonly had the primitive character but also had the evolution character, which had thevital significance on Olacaceae classification.
砂粒含量比大,通透性良好的土壤适宜蒜头果的生长;六个不同分布区土壤的有机质和全N含量极为丰富,速效K的含量水平中等,而土壤速效P的含量富贫差异较大;分布区土壤部分缺Cu,严重缺Zn、Fe;蒜头果叶片中的叶绿素含量与立地条件有着密切的关系;龙虎山样地立地条件比其他样地更适合蒜头果生长;不同立地上生长的蒜头果叶片中同一矿质元素含量有一定的差异,但差异不显著;土壤元素对蒜头果生长的影响由大到小依次为:N、Fe、Mn、Zn、K、Cu,其中四个是微量元素,而分布区土壤缺乏Cu,严重缺Zn、Fe而影响了蒜头果的生长发育。
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The city take yin and yang situated in the centre of the city as two origination, there radiated outword with eight main streets.
八卦城完全依据中国古代奇书《周易》而建,取六十四卦&泰卦&中的&天地交而万物通,上下交而其志同&的&天、地、人&三才和谐之意。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。