altimetric frequency curve
cumulative frequency curve
累积频率曲线
累积频数曲线
累积次数曲线
累积频度曲线
穹形线
discharge frequency curve
flood loss frequency curve
frequency curve of flood level
frequency curve of sediment
grain size frequency curve
Maximum frequency curve
multiplicative frequency curve
P-Ⅲ type frequency curve
Rainfall intensity frequency curve
relative frequency curve
curve of frequency distribution
frequency dispersion curve
frequency distribution curve