1)  Procontrol PF
Procontrol PF
1.
The author discusses the monitoring system of the boiler safety of Guohua thermal power company in Beijing,introduces the design configuration and the typical application of Procontrol PF of FSSS system of ABB company,points out that the system realizes the two out of three of the measuring point,the moudle,the power supply and the relay,and greatly improve the boiler protection.
论述了国华北京热电分公司锅炉安全监测系统FSSS,介绍了ABB公司FSSS系统Procontrol PF软、硬件的设计配置及其典型应用,指出该系统从测点到模件到电源到继电器均实现了三取二,大大提高了锅炉保护系统的安全性。
2)  PF
PF
1.
Effects of Soy-adhesive/PF Mixture on the Shear Strength of Plywood;
蛋白胶／PF混合应用对胶合板强度影响的研究
2.
Clinical observation of 68 cases of esophageal carcinoma postoperative pulmonary metastasis with HCPT and PF combination therapy;
羟基喜树碱合用PF方案治疗食管癌术后肺转移68例临床观察
3)  PF
功率因数
1.
This paper introduces the harm caused by low power factor and harmonics,explaines the definitions of power factor and THD,dissertates the basic principle and the control methods of active power factor correction,introduces interior structure and working principles of UC3854-an IC used only on APFC s control,explains typical circuit of UC3854 and testing result,dissertates its ascendant capability.
文中介绍了谐波存在的危害和APFC控制常用的专用集成芯片UC3854的内部结构及其工作原理,论述了有源功率因数校正的基本工作原理及其控制方式和优越的性能,给出了功率因数和THD的定义及UC3854典型应用电路和实测结果。
2.
This paper presents the operating principle of Active Power Factor Correction(APFC) circuit with one-cycle control.
采用基于单周控制的专用芯片IR1150[2],设计了一台1kW的功率因数校正装置。
3.
The control circuits can be realized by using modified single phase PFC algorithm.
介绍了一种交错并联的单相功率因数校正(PFC)电路及其控制方法,利用该电路中的耦合电感实现了Boost电路的二极管零反向恢复损耗,从而提高了电路效率,减少了EMI。
4)  PF
PF法
5)  PF
极地锋
6)  PF
音系式
参考词条
补充资料：Fluorinert PF 5070
CAS：335-57-9
分子式：C7F16
分子质量：388.05
沸点：80℃
中文名称：全氟庚烷；十六氟庚烷；全氟正庚烷
英文名称：hexadecafluoro-Heptane；Perfluoroheptane；hexadecafluoro-heptan；perfluoro-n-heptane；hexadecafluoro-heptane；Fluorinert PF 5070
说明：补充资料仅用于学习参考，请勿用于其它任何用途。