1) the rate of occurrence of acid rain
酸雨出现率
1.
Based on the sounding data,precipitation data and acidity of everyday in Xiamen city from 1992 to 2005,the influence of different weather conditions on precipitation acidity and the rate of occurrence of acid rain are analyzed.
文章利用1992～2005年厦门市的探空、降水量和酸雨资料来分析厦门市不同气象条件对降水酸度、酸雨出现率的影响,分析结果表明:(1)不同等级的降水对降水酸度和酸雨出现率有明显影响,相对于夏、秋二季,冬、春二季的降水酸度更酸,酸雨出现率更高。
2) acid rain frequency
酸雨频率
1.
In 2004,the acid rain frequency had reached 90% above.
2004年酸雨频率已达90%以上,pH年均值在4。
2.
We usually use the traditional remnant GM(1,1) model to forecast the acid rain frequency.
目前预测酸雨频率多采用传统的残差GM(1,1)模型 。
3.
With the observed date in ten acid stations of Sichuan in 2007,temporal and spatial distribution of pH in rain,acid rain frequency were analysed.
根据四川省10个酸雨观测站点2007年降水观测数据,对降水pH值、酸雨频率的时空分布特征进行了分析。
3) frequency of acid rain
酸雨频率
1.
The average level of acid rain is increasing every year, the PH and frequency of acid rain have obviously relationship with season or month switching.
本文利用2003~2008年北京地区三个酸雨观测站(观象台、昌平、上甸子)的酸雨观测资料并结合探空及大气成分资料,分析了近年来北京地区的酸雨变化特征,研究了不同气象条件和大气污染物对降水pH值及酸雨频率的影响。
4) occurrence frequency of oligonucleotide
寡核苷酸出现频率
5) frequency
[英]['fri:kwənsi] [美]['frikwənsɪ]
出现率
1.
Objective To study the distribution of gene frequency of two kinds of genetic traits including eyelash and Mongolia wrinkle(inner canthus wrinkle) in Xibo and Han nationalities of Liaoning to provide data for genetic of human Anthropology.
结果辽宁锡伯族和汉族短睫毛出现率分别为32。
2.
Frequency of U wave of lead V2 and V3 was highest in 12-lead electrocardiogram.
结果U波出现率和电压有显著的导联和年龄差异,V2、V3导联U波出现率最高。
6) 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。
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