1) watering frequency
浇水频率
1.
Effects of litter coverage and watering frequency on seed germination and seedling survival of Castanopsis fissa.;
浇水频率和凋落物覆盖量对黧蒴锥种子萌发及幼苗存活的影响
2) flood hazard frequency
水灾频率
3) frequency of water inrush
突水频率
4) Hydrological Frequency
水文频率
1.
Parameter optimum estimation for hydrological frequency curve;
水文频率曲线参数优化估计研究
2.
Application of regular polyhedron optimization algorithm to automatic calculation of hydrological frequency;
基于正多面体算法的水文频率自动计算研究
3.
A review of bivariate hydrological frequency distribution;
两变量水文频率分布模型研究述评
5) irrigation frequency
灌水频率
1.
Effect of surface irrigation frequency on soil water and temperature as well as growth of spring maize;
地面灌灌水频率对土壤水与温度及春玉米生长的影响
2.
Study on effects of irrigation frequency on soil water-transport of line source permeation under subsurface drip irrigation;
灌水频率对地下滴灌线源入渗土壤水分运动规律影响的试验研究
3.
Effects of drip irrigation frequency on the farmland soil water-heat distribution and spring maize growth in North China;
华北地区滴灌灌水频率对春玉米生长和农田土壤水热分布的影响
6) hydrologic frequency
水文频率
1.
On the basis of the information entropy concept,the criterion of minimum information entropy is prososed as a standard for optimizing the hydrologic frequency distribution in the paper.
根据信息熵的基本概念，提出了最小信息熵准则作为水文频率线型选优的判别标准，给出了推导频率分布信息熵的一般方法，及各种信息熵的计算公式，最后举出应用算
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