1) Biclosed semirings
双闭半环
1.
:In this paper,we introduced a new concept the Biclosed simiring with two infinite sum operations and proved that both P(∑*)={L|L is a language over ∑ where ∑ is an alphabet} and B 《∑*》={r|r is a formal power series with coefficients in B={0,1} and variables in ∑} are near Biclosed semirings and both are isomorphic.
该文建立含两个无穷和代数运算的双闭半环概念，证明了：字母表∑上全体语言之集Ｐ（∑）与布尔半环Ｂ＝｛０，１｝上的形式幂级数全体之集Ｂ《∑》近双闭半环同构，进而用半环对∑上的前（后）缀码给出了刻划。
2) half-closed loop
半闭环
1.
Development of electric gastric lavage machine based on half-closed loop;
采用半闭环控制的电动洗胃机研制
3) semi-closed cycle
半闭环
1.
The aerodynamic performance of turbomachinery for an gas turbine engine based on a semi-closed cycle employing carbon dioxide as the primary working fluid was analyzed.
本文对采用二氧化碳作为基本工作流体的半闭环燃气轮机循环的空气动力学特性进行了详尽的分析。
4) double closed-loop
双闭环
1.
Research of double closed-loop SPWM inverter based on DSP;
基于DSP的双闭环SPWM逆变器研究
2.
Simulation of fuzzy PID double closed-loop DC speed regulation system base on Matlab
基于Matlab的模糊PID双闭环直流调速系统的仿真
3.
A novel control strategy of repetitive control and double closed-loop control is presented based on analysis of the merits and demerits of traditional control.
在分析了传统控制方法优缺点的基础上,提出了一种基于重复控制和双闭环控制相结合的复合控制弧焊数字化逆变电源控制方案。
5) double closed loop
双闭环
1.
Design and Realization of Speed Adjusting System with Double Closed Loop and Reversible PWM for DC Motor based on DSP;
基于DSP的双闭环可逆PWM直流调速系统设计与实现
2.
Double closed loop DC speed system based on auto-disturbance rejection controller;
基于自抗扰控制器的直流双闭环调速系统
3.
It establis hes a double closed loop system of BLDCM,designs the relevant hardware circuit,and the software program as well.
建立了直流无刷电动机双闭环控制系统。
6) double close loop
双闭环
1.
New Double Close Loop Controlled High precision NC Machine Tool;
新型双闭环高精度数控机床
2.
A Brushless motor control system design based on C8051 was introduced,speed and current double close loop control was realized.
论述了基于C8051的直流无刷电机控制系统设计,实现了速度、电流的双闭环控制。
3.
Finally,the indirect vector control system is made as the research target and double close loop control systems which contain synchronous current inside loop and speed outside loop are introduced.
首先对磁场定向控制理论进行了详细分析,比较后采用间接磁场定向的控制方法,并建立基于同步电流内环、转速外环的双闭环控制结构。
补充资料：双闭环比值控制系统
分子式：
CAS号：
性质：具有比值控制和流量控制两个闭环回路的系统。其中一个变量(主变量)受到流量控制回路的控制；另一个变量(从变量)受到比值控制回路的控制，从变量的设定值取决于主变量的测量值。
CAS号：
性质：具有比值控制和流量控制两个闭环回路的系统。其中一个变量(主变量)受到流量控制回路的控制；另一个变量(从变量)受到比值控制回路的控制，从变量的设定值取决于主变量的测量值。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条