一级

Nitrosomonas is successfully cultured in two aerobic reactors in this paper. Experimental results show that two-stage SBR is superior to one-stage SBR at the same hydraulic residence time. Stable nitritation is realized because the nitrobacter is sensitive to the changing environment.

在两个SBR好氧反应器中成功培养出大量的亚硝酸菌，研究结果表明：在水力停留时间相同时，两级SBR好氧反应器的脱氮效率优于一级SBR好氧反应器。

The nitrosification of suspended activated sludge of SBBR one-step completely nitrogen removal process could be defined as the first order reaction.

单级自养脱氮系统中悬浮态活性污泥的亚硝化反应可以近似按一级反应表示，反应速率随生物量的增加而增加。

Nitrosomonas is successfully cultured in two aerobic reactors in this paper. Experimental results show that two-stage SBR is superior to one-stage SBR at the same hydraulic residence time.

在两个SBR好氧反应器中成功培养出大量的亚硝酸菌，研究结果表明：在水力停留时间相同时，两级SBR好氧反应器的脱氮效率优于一级SBR好氧反应器。

The differential equations of motion and the state space model of the single inverted pendulum nonconservative damping system are deduced by using the second kind Lagrange equation.

利用第二类Lagrange方程推导了一级倒立摆非保守有阻尼系统的运动微分方程和状态空间模型。

Elovich equation,zero order equation ,first order equation and parabolic equation was used to describe the nonexchangeabe k releasing process.Then the best model was selected to describe nonexchangeable k release and its velocity.

利用Elovich方程、零级方程、一级方程和抛物线扩散方程对土壤的累积释放量进行模拟，研究探讨了描述土壤非交换性钾释放及其速率较为理想的动力学模型。

According to regionalizing indicators of average annual accumulated temperature above 20℃, average annual freezing index, precipitation in freezing period and average annual precipitation in nonfreezing period, the macro layer of the regionalization, China climatic regionalization for highway, were suggested through methods of cluster analysis, division based on indicator and layers superposing, which included 10 first-level regions and 24 second-level regions. It summarizes that climate of China affects highway in macro level.

利用多指标系统聚类分析、指标划分和图层叠置等方法，以累年年≥20℃积温、累年年冰冻指数、累年年非冰冻期降水量以及累年年冰冻期降水量为区划指标，对处于方案体系宏观层的中国公路气候区划进行了具体划分，提出了由10个一级区、22个二级区构成的两级区划方案，为了解中国气候对公路综合影响的异同性以及影响程度差异提供了一个平台。

What Americans need to know, and what they are not being told, is that three out of four independent (non-industry sponsored) research studies worldwide are showing biological effects from low-level, nonionizing radiation similar to that used in wireless communications.

美国人必须知道，什么他们没有被告知的是，四分之三的独立的研究显示世界各地的生物效应从低一级， nonionizing辐射相似，使用无线通信。

Because of the features of switch capacitor we should adopted nonoverlapping clock signal if we want to guarantee charge completely through the switching of power MOSFET.

由于开关电容的充放电特点，为确定电容时间常数，采用非交叠时钟控制信号避免了由于时钟交叠而造成的当电容充电还未完成即对下一级电容进行放电的现象。

Obesity, nulliparity, increased age, the amount of alcohol consumed, and the number

不典型导管增生，肥胖，未产妇，增加的年龄，饮酒量，有乳腺癌第一级的

Anaerobic biological deodorization system was able to work steadily even when COD concentration of influents reached 10000mg/L, olfactometry measurement was fitted 5-grade standard and volumetric loading rates were 10.58Kg. COD/; In the two combined UASB systems, Hydraulic Retention Time of the first UASB was 28h, olfactometry measurement of effluents was fitted 3-grade standard; and when HRT of the second UASB was 67h, olfactometry measurement was below 2-grade.

COD〓，厌氧反应器可稳定运行，并具有优良的除臭性能；对两级串联的UASB系统，一级水力停留时间为28h时，出水臭气强度可达3级；二级水力停留时间为67h时，二级出水臭气强度可在2级以下。

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。