1) unoccupied frequency
安静频率
2) static frequency
静频率
1.
Analysison the overstandard of the static frequency of the turbine blade of N300MW units;
N300 MW机组叶片静频率超标的分析探讨
3) natural frequency
静态频率
1.
The frequency discrimination of traditional FFT spectrum in turbine blade natural frequency testing is rough.
汽轮机叶片静态频率测试分析中通常采用的FFT谱分析方法的频率分辨率比较粗,基于FFT+FT连续谱参数估计方法,提出了汽轮机叶片静态频率测量分析的新方法,可以大大提高频率测量的分辨率。
2.
The measurement accuracy and work efficiency are greatly improved by turbine blade natural frequency measurement system based on industrial PC.
基于PC机的汽轮机叶片静态频率测量系统可大大提高测量的精确度和工作效率。
4) rest frequency
静止频率
5) heart rate at rest
安静心率
1.
According to the demand and evaluation standard of Chinese national physical fitness in 2000, the testing results of Zhejiang adults showed: the physical fitness of exercising adults was better than that of not exercising adults, exercises can improving adults vital capacity, and there was no effect on heart rate at rest.
根据2000年中国国民体质监测的要求和评价标准,对浙江省成年人的抽样监测发现,参加体育锻炼者其体质水平明显好于不锻炼者,同时能明显提高肺活量水平,对安静心率的影响不明显。
6) frequency security
频率安全
1.
Study on united under-frequency load shedding scheme of China Southern Power Grid based on frequency security quantitative analysis;
基于频率安全定量分析的南方电网联合低频减载方案
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