单级

Stainless steel gasreducer:Double stage type diaphragm pressure-reducing structure and stainless steel diaphragm are suitable for corrosive gas,standard gas,clean gas and mixed gas.

不锈钢气体减压器：单级式膜片减压结构，不锈钢膜片，保证输出压力的稳定，适用于腐蚀性气体、标准气体、纯净气体、与混合气体。

Stainless steel gasreducer:single stage type diaphragm pressure-reducing structure and stainless steel diaphragm are suitable for corrosive gas,standard gas,clean gas and mixed gas.

黄铜气体减压器：单级式膜片减压结构，不锈钢膜片，保证输出压力的稳定，适用于腐蚀性气体、标准气体、纯净气体、与混合气体。

SOW series single stage double entry pump is a horizontally split volute centrifugal pump, mainly used to handle clean water or liquids similar to water in physical and chemical properties, temperature not above 105℃.

SOW系列单级双吸泵系水平中开蜗壳式离心泵，主要供输送温度不高于105℃的清水或理化性质类似于水的液体。

Because there is less gas pressure exerted on the valve stem.

在单级减压阀里，输出压力随钢瓶压力的减小而增大，这是因为施加在阀门系统上的气体压力减

Thus,theexample above demonstrates that a 4 valve with a singlestagedrilled hole cage can achieve a low noise level despite thefactthat the time exit velocity head is much great than the 480kPalimitations that some valve manufacturers advocate.

因此，上例显示了4的单级笼式套筒阀可以实现低噪音，尽管阀门内件节流出口速度头远超过480KPa。这就是一些厂家主张的这个方法的局限性。

This paper presents design and experimental resultsfor a high performance single stage transonic fan with design pressureratio 2.3 and design efficiency 0.88 at high tip speed 510m/s (relativeMach number reaches 1.72) and low aspect ratio.

本文介绍一高性能单级跨音速风扇的设计与试验结果。该风扇设计压比2.3，设计效率0.88，具有高切线速度510 m/s(相对马赫数达1.72)和低展弦比。

Nevertheless, single-stage pump is not one hundred percent of the balance, it also uses a thrust bearing.

纵然如此，单级泵也不是百分之百的平衡，所以还采用止推轴承。

The stage can be either a traditional coupled-line or a three-line structure.

此单级电路可为一个传统的耦合微带线或是一个三线的架构。

With the use of RNG turbulent model in the CFD software Fluent, the inner flow of double suction centrifugal pump with semi-spiral suction chamber was calculated.

在CFD软件Fluent中采用考虑了旋转与曲率影响的RNG湍流模型，对具有半螺旋形吸水室的单级双吸离心泵进行了全流道数值模拟计算。

HanDe leading products include Hub Reduction Drive Axle, Single Reduction Driving Axle, Steering Axle and Tag Axle etc. totaling 5 series of more than 50 types' products.

公司主导产品有：轮边减速驱动桥、单级减速驱动桥、转向前轴、重型军用越野车驱动桥、挂车承载轴等五大类50多个品种。

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。