单级的

To improve the performance of single SBBR completely autotrophic nitrogen removal system and study the influence of aeration/non-aeration ratio on it, four reactors were applied in the experiment.

为提高SBBR单级自养脱氮系统脱氮性能并考察DO和曝/停比对SBBR单级自养脱氮系统的影响，采用4组对比试验进行研究。

The signature of a gas made up by these monopoles has also been observed in heat capacity measured by Bastian Klemke.

这个提供了深远的证据说明磁单级子的存在性，并展示给我磁单级子之间的相互作用，将和电荷是一样。

But some of those systems adopt one layer DDC structure that is unreliable and badly expansible, and can't satisfy the requirement of general management and hierarchy management in fermentation process.

但在这些实现的系统中，有很大一部分采取单级的直接数字控制系统结构，可靠性和可扩展性都比较差，很难满足对全厂的发酵过程进行全局管理和分级管理的需要。

For single-stage pump, the packing seal combined with expeller should be utilized. And the sealing water pressure is equal to or larger than 0.2Mpa.

对于单级的渣浆泵，建议采用填料加付叶轮组合式密封，轴封水压力一般不低于0.2MPa。

The tie rod line of pneumatic cylinders is available with single stage and multi stage piston areas.

气动汽缸的连接杆可用单级的和多级的活塞面积。

The sudden collapse of the Soviet Union tempted the United States to proclaim universal political goals in a world of seeming unipolarity—but objectives were defined by slogans rather than strategic feasibility.

苏联突然解体鼓舞美国在近似单级的世界中宣扬普世政治目标。然而这些目标听起来只不过是些口号，而不是可行的策略。

The system may be configured as either a single-stage mode wherein the first gearset assembly (42) is received in the gearbox (40) to produce a rotational speed adjustment between the shafts, or a multi-stage mode wherein both the first and second gearset assemblies (42,44) are received in the gearbox (40) and are connected in series to produce a different rotational speed adjustment.

本系统可构造成单级模式或者多级模式，在该单级模式下第一齿轮组组件容纳在齿轮箱内以便在所述轴之间产生转速调节，在该多级模式下第一和第二齿轮组组件都容纳在齿轮箱内并串联连接以便产生不同的转速调节。

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。

started with the analysis of characteristic parameter of the successive detection logarithmic amplifier,mainly discusses the main factor affecting its transfer characteristic by mathematics reasoning to its transfer function,studies the correlative relations of the single stair′s plus,the series with the dynamic range and the logarithmic precision by matlab and matrixx simulation.so two pieces of conclusion have been reached:one is on condition that the dynamic range is limited,the more the series that is used and the single stair′s plus is less,the higher the logarithmic precision is.the other is that using the double amplifier chain can enhance the logarithm starting point,so its stability is improved.and the conclusion has been applied to the practical circuit′s analysis of the tacan beaconing receiver.

摘 要：从分析连续检波式对数放大器的特性参数入手，对其传输函数进行了数学推导，重点讨论了影响其传输特性的主要因素，通过matlab和matrixx仿真，研究了输入动态范围与级联级数、单级增益和对数精度的相互关系，得出了两点结论：一是在限定动态范围的前提下采用的级数越多其单级增益越小而精度就会越高，二是采用双放大链结构可以提高对数起点，从而提高其稳定性。最后将结论应用于塔康信标接收机实际电路的分析中。关键词：对数放大器；连续检波；塔康信标；对数精度

It has been found that the ratio of compression is more notable than the pressure of jetting steam on injection coefficient.

计算说明压缩比的影响比工作蒸汽压力的影响更为显着，采用两级喷射器串联力式虽然可使单级的喷射系数提高，但系统总的喷射系数并不一定提高。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。