1) Increase of frequency
频率升高
2) increase of frequency
频率升高，提高频率
3) improving electrical frequency
升高电加热频率
1.
This paper expounds the significance of electrical heating in gathering heavy oil, and presents two methods of improving the efficiency of electrical heating: heating with special cable made of nonlinear resistivity material and improving electrical frequency.
阐述稠油采集电加热的重要意义 ,提出了电阻率非线性特种电缆和升高电加热频率两种提高稠油采集电加热效率的方法 ,并运用绝缘双极型晶体管 (IGBT)和非晶态变压器等研制成功 10 0kVA 2 0 0 0Hz特种变频器 ,实施了一种高效电加热方法 ,取得了国内最佳节能效
4) high boost
频率特性曲线高频提升
5) UHF power booster
超高频功率升高器
6) VHF power booster
甚高频功率升高器
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
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