单级

At present, the production of single-stage centrifugal pump SB, widely used in air-conditioning, refrigeration system.

目前主要生产SB型单级离心泵，广泛应用于空调，制冷系统。

This transmission provides a more continuous power band than a single-stage pump system.

这传输提供了更持续功率频带比单级泵系统。

Of single-stage pump, the balance of axial thrust of the three main methods

对单级泵来说，平衡轴向推力的方法主要有三种

After more than 30 years of development, high-speed single-stage centrifugal blowers have been in the field of urban sewage treatment plays a decisive role.

经过三十余年的发展，高速单级离心式鼓风机已经城市污水处理领域中具有举足轻重的地位。

Single-stage triggers are factory set for optimum performance, but can be adjusted by operator if desired.

单级触发器工厂设置以获得最佳性能，但可以通过运营商如果需要调整。

It is very convenient to use this programme to optimization the structural parameters of a single-stage servovalve and other hydraulic components.

对一些特殊关系及参数提出了处理方法，同时给出了求解该种模型的方法和程序，为单级电液伺服阀及其它液压元件结构参数的合理取值提供了一个方便的途径。

After 30 years to continue to improve, high-speed single-stage centrifugal blowers with a high degree of reliability, advanced.

经过三十几年来不断改进，单级高速离心式鼓风机具有高度的可靠性、先进性。

Zero-voltage-switching and single-stage power factor correction half-bridge converter is presented in this paper.

本文介绍了一种具备零电压开关特性及功率因数校正功能的单级半桥变换器。

For the first time, a fully integrated CMOS cascaded single-stage distributed amplifier has been designed, fabricated and tested.

利用CMOS制程所设计的串接单级分布式放大器第一次被成功的制作与测试。

Single-stage drive:Drive ratio reaches 87,average efficiency is upwards of 90%.

特点1、高速比和高效率单级传动，传动比达87，平均效率在90%以上。

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。