单级的

LQRY series hot oil pump is the second generation developed on the basis of the oil pumps abroad, basically structured as single stage single entry overhung foot supported. Pump inlet is axial suction, and outlet has its center vertically upward, which are mounted, together with the motor, at the bottom.

LQRY系列热油泵是本单位消化吸收国外油泵的基础上研制的第二代产品，基本结构形式为单级单吸悬臂式脚支撑结构，泵的进口为轴向吸入，出口为中心垂直向上，和电机同装于底座上。

QCRY series hot oil pump is the second generation developed on the basis of the oil pumps abroad, basically structured as single stage single entry overhung foot supported. Pump inlet is axial suction, and outlet has its center vertically upward, which are mounted, together with the motor, at the bottom.

QCRY系列热油泵是本单位消化吸收国外油泵的基础上研制的第二代产品，基本结构形式为单级单吸悬臂式脚支撑结构，泵的进口为轴向吸入，出口为中心垂直向上，和电机同装于底座上。

The R-2800 was an eighteen-cylinder, double-row radial engine equipped with a single-stage, single-speed supercharger.

的 R - 2800年是18缸，双排径向引擎，配备了单级，单速度增压器。

The single mechanical seals of five PHP pumps, nine PLA pumps, two THD pumps and nine ZA pumps in the acetic acid plant were changed into dual mechanical seals based on not changing main parts such as casing, impeller, shaft, bearings house etc. to solve the leakage problems of flammable, explosive, poisonous, harmful substances, such as acetic acid, methyl iodide, hydroiodic acid, and propionic acid etc.

通过对醋酸装置中所选用的5台PHP型、9台PLA型、2台THD型及9台ZA型单级卧式脚支撑化工离心泵，在不改变泵壳、叶轮、轴、轴承箱等主要部件的基础上，将原来的单端面机械密封改造为双端面机械密封或串联式机械密封，以此来防止所输送的易燃、易爆、有毒、有害高危介质（如醋酸、碘甲烷、碘化氢、丙酸等）外漏。

Grundfos NSBasic, is a single-stage impeller and the two-stage impeller of the small end of the stomach pump , it has a cast iron pump , composite material or cast iron impeller can provide long-term stable and reliable in operation.

格兰富NSBasic，是单级叶轮与双级叶轮的小型端胃泵，它具有的铸铁泵，复合材料或铸铁的叶轮可以于提供长期稳定的可靠运行。

Guangzhou Pump , Grundfos NSBasic, is a single-stage impeller and the two-stage impeller of the small end of the stomach pump , it has a cast iron pump , composite materials or cast ...

广州易泵贸易有限公司，格兰富NSBasic，是单级叶轮与双级叶轮的小型端胃泵，它具有的铸铁泵，复合材料或铸。。。

But the effluent ammonium in the anoxic reactor, where enough NO2 present were present, was equal to the blank system, and no ammonium was converted to such nitrogen compounds as NO-2 and N2 by Nitrosomonas eutropha using NO2 as electron acceptor, which maybe caused by lack of the function bacteria.

但在足够NO2存在并且缺氧的条件下，单级自养脱氮系统内的出水氨氮浓度与空白反应器相当，NH+4并没有被亚硝化单胞菌以NO2为电子受体氧化为NO-2和N2等化合物而得以去除，可能是因为系统内不存在该类型的亚硝化功能菌。

The influence of the one-stage single-lens optical system on the divergence angle of Gaussian laser beam is analyzed theoretically.

在理论上分析了单级单透镜光学系统对激光高斯光束发散角的影响。

Low-frequency instability in a single stage PFC converter is studied, which employs a cascade configuration of a boost converter and a forward converter.

研究了由Boost 变换器和Forward变换器级联构成的单级功率因数校正(power factor correction，PFC)变换器中的低频不稳定现象。

Like the green jersey, the mountains jersey also requires consistency, but not in the same way. Most of the time, a rider wanting the dots will get in a breakaway on one of the first big mountain stages and win most of the points. The defense of it usually requires another long breakaway, but polka dot contenders don't have to concentrate on every single bonus like the sprinters do, because the big climbs are worth so much more than the small ones.

要想取得圆点衫，往往需要长距离的攻击，形成单飞之后逐一拿下爬坡赛点，与冲刺积分不同的是，爬坡积分会因爬坡赛点等级的不同而不同，一个S级的赛点会比4级的赛点积分高出很多，所以圆点衫的争夺要到山地赛段开始之后才会真正展开。

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。