1) 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。
2) 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。
3) Occurrence frequency of acid rain
酸雨发生频率
4) rainfall frequency
降雨频率
1.
Based on the experimental data from Guilin Irrigation Experiment Station in Guangxi Autonomous Region,the relation of rainfall utilization and surface runoff in paddy fields under different rainfall frequency and different irrigation regimes is studied;i.
对广西桂林不同降雨频率与不同灌溉方式下的降雨利用、径流量分析研究表明,晚稻降雨利用率远高于早稻;早稻在"薄、浅、湿、晒"、间歇灌溉、传统灌溉模式下降雨利用率随降雨频率的增加呈缓慢上升趋势,而晚稻节水灌溉模式下呈上凸趋势;早稻全生育期和晚稻分蘖期、拔节期径流量很大,对肥料流失产生不利影响。
5) rain gust frequency
暴雨频率
1.
At some local places,the total rainfall and the rain gust frequency became exceptionally serious,causing heavy loss to the local industry,agriculture,communication,marine farming,and coastal.
这次暴雨涉及范围广,强度大,局部分点地区雨量暴雨频率比较稀遇,为当地工农业生产、交通、沿岸养殖业及海岸工程造成了巨大的损失。
6) acid rain occur quotiety
酸雨发生率
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