1) variable pressure frequency control
变压差循环变频
1.
Three kinds of frequency control techniques were analyzed,including fixed pressure frequency control,constant pressure frequency control and variable pressure frequency control.
针对目前供暖循环水泵电功耗较高情况,提出了利用变频调速技术调节循环泵流量的技术措施,分别就定压循环变频、恒压差循环变频、变压差循环变频3种控制方式进行了阐述,并通过实验数据说明了变压差循环变频控制方式的优越性。
2) constant pressure frequency control
恒压差循环变频
1.
Three kinds of frequency control techniques were analyzed,including fixed pressure frequency control,constant pressure frequency control and variable pressure frequency control.
针对目前供暖循环水泵电功耗较高情况,提出了利用变频调速技术调节循环泵流量的技术措施,分别就定压循环变频、恒压差循环变频、变压差循环变频3种控制方式进行了阐述,并通过实验数据说明了变压差循环变频控制方式的优越性。
3) pressure-cycling
变压循环
4) cycloconverter
[,saikləukən'və:tə]
循环变频器
1.
The study of single-chip microprocessor controlled three-phase cycloconverters;
微机控制的三相循环变频器的研究
2.
To solve the problem of limited output-frequency in cycloconverter, a high voltage AC-AC converter topology based on phase shift transformer is presented.
为了解决无环流循环变频器输出频率受限的问题,本文提出了基于变压器移相级联的高压交交变频拓扑。
5) variable-firing-rate and double cyclic
双循环变射频
1.
Combined with the 10th five -year key advanced research project of national defense "Firing technology for rifles with variable-firing-rate and double cyclic systems", the impacting dynamic stresses of this kind of rifle s three key elements(breech mechanism, receiver, firing pin) are analysed and studied in this paper.
本文结合“十五”国家重点预研项目一“步枪双循环变射频发射技术研究”，对变射频步枪的三个关重件(闭锁机构、机匣、击针)在撞击条件下的动态应力进行了分析研究。
6) frequency regulation of circulating pumps
循环泵变频调节
补充资料：循环系统的进化鱼的循环系统
李瑞端绘
[图]
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