| 释义 |
PFMCOCA¹³⁶⁸⁶⁶BNC⁵⁸²⁸⁵
基本例句
n.功率因数计⁵⁰磁带正转;脉冲频率调制⁵⁰
A simple measuring method for effective value of pulse frequency modulation PFMis presented against on the needs of designation and analysis of high frequency X- ray generator.
针对高频 X线发生器中高压和灯丝逆变器设计的实际需要，提出了一种基于脉冲调频 PFM推挽衰减振荡波形的有效值的示波器测量法。 chemyq
Microprocessor is used to realize the Pulse Frequence Modulation PFM control of the inverter.
用单片机对半桥逆变器进行 PFM控制。 cnki
Pulse skip modulation PSM is a modulation mode for power conversion, which is different from PWM and PFM.
跨周期调制 PSM是一种不同于 PWM和 PFM的功率变换调制模式。 dictall
The piezo response force microscopy PFM is a useful method to study ferroelectric domains of ferroelectric films.
压电响应力显微镜为铁电薄膜电畴的研究提供了一种有效的检测方法。 iciba
A pulse frequency modulation PFM with discrete frequency is designed.
设计了一种离散频率的 PFM控制方式。 cnki
All control circuits are integrated including power MOS in the IC except the output low-pass filter, two optional operation modes: PWM and PFM are available.
该 IC集成了除输出低通滤波器的所有控制电路包括功率 MOS，提供 PWM和 PFM两种模式供选择。 iciba
By utilizing the LED and light way of the instrument and employing PFM modulation, it can transmit voice from the master of the instrument to measuring point.
该装置利用光电测距仪的光源和测量光路，采用 PFM调制，来完成测量主机到测量站的话音通信。 cnki
Compared with the conventional linear control charge pump, the PFM control charge pump offers lower quiescent current, higher efficiency and low output ripple, especially in low load condition.
在电路理论中，本课题提出了一种新型 PFM控制型电荷泵，与传统电荷泵相比，在芯片轻负载时，它具有更高的转换效率、更低的静态电流等优点。 cnki
Compared with PFM, GFFM has no bad effect of soil pollution so, the GFFM would be one of the effective ways to solve the“ drought” and“poor” problem in the dry farming areas of Northern China.
与塑料地膜相比，草纤维膜覆盖没有污染土壤的副效应，因此是解决我国北方旱农地区“旱”与“薄”问题的有效方法。 cnki
Conclusion The gold alloy PFM may affect periodontium less than the titanium alloy PFM in observation period of this study.
结论金合金 PFM是一种较钛合金 PFM对牙周组织健康影响更小的修复体。 cnki
Describes a kind of PWM PFM hybrid control method for voltage fed series resonance inductive heating and provides an experimental circuit.
叙述了一种电压源供电的串联感应加热负载的 PWM PFM混合控制方法，并给出了实现的方法和实验电路。 cnki
In recent years, phase field model PFM of alloy solidification based on solute trapping and solute drag was introduced as a powerful tool to simulate the process of solidification.
近年来发展起来的 PFM模型根据“溶质捕捉”和“溶质牵引”两种机制对金属及合金快速凝固过程进行数学描述及模拟，较好地反映了金属凝固的物理本质。 dictall
It operates both in current mode at high output load and in pulse frequency modulation PFM at light load to reduce the power dissipation.
它在重载下工作于电流控制模式，轻载下工作于脉冲频率调制 PFM模式来降低功耗。 www.jos.ac.cn
Methods The manufacture method was according to routine PFM.
方法制作按照 PFM常规制作方法。 chemyq
Methods88 malocclusion of individual anterior teeth of adult patients were treated with root canal therapy and restored by casting post and core PFM crown.
方法：选择个别前牙错牙合的成年患者88例，在修复前进行完善的根管治疗，再采用铸造桩核烤瓷冠的方法修复。 chemyq
Objective To evaluate the clinical results of PFM restoration and prosthodontics.
目的金-瓷修复体的临床效果评价。 dictall
Objective To evaluate the esthetic effect of anterior PFM Ni- Cr Alloy crowns with gingival porcelain.
目的评价颈缘瓷在前牙镍铬合金烤瓷全冠修复中的临床美学效果。 cnki
The result shows PFM model has some prediction power, and the prediction rate is obviously lower than those in developed countries.
实证结果表明 PFM模型在我国具有一定的预测能力，但预测准确率低于在欧美国家的准确率。 fabiao
The PFM technology includes two kinds modes: constant width PFM and SWFM.
脉冲频率调制又包括了两种方式，即等宽 PFM和 SWFM。 cnki
The structure of the transmission system in the PFM optic transmitter is designed.
本文的研究工作有以下几个方面：设计 PFM光发射机的传输系统结构。 cnki
These provide in accordance with design accurately PFM optical fiber communication system and rational select operation reference number.
这些给正确设计 PFM光纤电视传输系统及合理选择工作参数提供了依据。 cnki
This paper describes the major performance and applications of the PFMpulse frequency modulation optical fiber transmission equipment for colour TV programs with two accompanying sound channels.
本文叙述 PFM彩色电视双伴音传输设备的主要性能和应用。 cnki
This paper introduces a PFM repeater for fiber transmission of one colour TV signal.
本文介绍一种传送一路彩色全电视信号的 PFM制光纤传输中继机。 cnki |