1) publishing frequency
出版频率
1.
This paper, with A Catalogue of Foreign Newspapers and Periodicals (ninth edition) as source of materials, makes a deep study of the discipline distribution, country distribution, category distribution, publishing frequency publishing institution, and so on, of biological periodicals, and a brief description of the prominent characteristics of these periodicals.
以《外国报刊目录》第九版为资料,对生物学期刊的学科分布、国别分布、类别分布、出版频率及出版机构等进行了认真调查,并对其突出的特点进行了简要的描述。
2) Frequency
[英]['fri:kwənsi] [美]['frikwənsɪ]
出版频率(出版周期)
3) frequency output
频率输出
1.
Structure and the frequency output characteristic of the quartz crystal sensor are described.
介绍了石英晶体传感器的结构及频率输出的特点,分析了由石英晶体构成的温度、应力、微质量、声压等传感器的测量机理,评述了与其对应的各种应用及其优缺点。
4) stylus beating frequency
出针频率
1.
The relation equation between the stylus beating frequency and the motion speed of printer head is derived from the analysis of the mechanism of stylus printer and validated by experience.
通过对打印机工作机理的分析 ,确定了打印机出针频率与打印头运行速度之间的关系。
5) Occurrence frequency
出现频率
1.
The results show that the occurrence frequency with force two~four sea conition is 80.
结果表明,这个海域2～4级海况的出现频率占80。
6) output frequency
输出频率
1.
In traditional three-wave-head AC-AC converter,there are deficiencies such as complex control circuit,big harmonic content in output waveform or low output frequency.
针对传统三波头交-交变频器控制线路复杂,输出波形谐波含量大,输出频率较低的缺点,提出了六波头交-交变频器的零式接法。
2.
Analyse the grain current velocity,dirt percengtage and and temperatures influecing factors for sensor output frequency on the experimental bench.
设计了分流式取样装置,配备无级变速的叶轮式排粮机构,在实验台上对谷物进行试验研究,分析了谷物流速、含杂率以及温度等因素对传感器输出频率的影响规律,自主研制电容式谷物水分传感器并通过烘箱法进行标定试验,试验结果表明:该传感器的水分测量范围:11%～24%,测量精度:≤0。
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