| 1. | Restoration of residue crown and residue root using post - and - core pfm crowns
冠烤瓷修复残根残冠 |
| 2. | In this paper ， the design of the pfm optic transmitter is developed
本文研究了pfm光发射机的设计问题。 |
| 3. | A pfm controlled step - up dc / dc converter is analyzed in this thesis
论文设计了一种升压型dc / dc变换器的控制芯片。 |
| 4. | Pulse frequency modulation pfm
脉冲频率调制 |
| 5. | Pfm pulse frequency modulation
脉冲频率调制 |
| 6. | Pfm parameter frame mnagement
参数构成管理 |
| 7. | 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 。 |
| 8. | Pfm public data network
公用数据网 |
| 9. | The pfm as the key technology in the pfm optic transmitter is discussed
分析了pfm光发射机设计中的一项关键技术，即脉冲频率调制。 |
| 10. | The work in this thesis includes several parts as follows . 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。 |
