单级的

This design is the engineering of the instrumentation system to the reactor in PX Plant in which there are 4 single loop control, 2 cascade control and all the controllers and control valves are selected and calculated carefully to the system, the CENTUM control system will be used .

本设计对PX装置异构化单元反应器进行自动控制系统设计，其中共设计单回路系统4个，串级控制系统2个，并对控制系统所涉及到的控制器，控制阀等进行了选择且进行了相关的计算。

This design is the engineering of the instrumentation system to thereactor in PX Plant in which there are 4 single loop control, 2cascade control and all the controllers and control valves areselected and calculated carefully to the system, the CENTUM controlsystem will be used .

本设计对PX装置异构化单元反应器进行自动控制系统设计，其中共设计单回路系统4个，串级控制系统2个，并对控制系统所涉及到的控制器，控制阀等进行了选择且进行了相关的计算。

Finally, a one phase 2 kVA prototype is designed to verify the validity of the power balance strategy for II-type.

最后通过一台单相容量为2 kVA的原理样机对3单元II型级联多电平逆变器的均衡策略进行了实验验证。

A new servovalve using a pressure control pilot state was introduced, which uses two spools instead of single spool in power magnifying stage.

介绍了一种新型的压力先导控制伺服阀，该阀的功率放大级采用双阀芯结构代替传统单阀芯结构。

Okia: There is a boosted D-class mono speaker for hands free.

8搭载了一个加强的D级单扬声器。

Based on one-cycle control method, a novel control strategy for cascaded active power filter is proposed.

基于单周控制方法，作者提出了一种级联型有源电力滤波器的新型控制策略。

Methods 60 primiparas of pregnant term were distributed randomly for 4 groups, A, B, C and D, the infusion speed were 4, 6, 8 and 10mL/h accordingly.

60例拟行自然分娩的单胎足月初产妇，ASAI、II级，随机平均分为A、B、C和D4组，背景输注速率分别为4、6、8和10mL/h。

This thesis mainly focuses on the control strategy of a new cascade multilevel converter with single DC source.

本文对一种新型单电源级联多电平拓扑的控制策略进行了研究。

This paper studies the design of inventory coordination mechanism in suppiy chain under single-period random demand.

研究了单周期随机需求条件下两级供应链的库存协调机制设计问题。

It is found that Kerr effect has a great influence on the non-classical photon statistics in the case of large single-photon detuning in the system.

结果表明：当单光子失谐量较大时，Kerr效应对光场与级联三能级原子非共振相互作用系统的光子非经典统计性质有较大影响。

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。