hourly variation coefficienthourly variation cofficienthourly variation factorhourly varlation coefficlent化: change; turn; transform系数: coefficient; ratio; modulus; ...小时变化系数: hour variation coefficient; hourly variation coefficient变化系数: coefficient of variation; coefficientofvariation; transformation ran ratio; variation coefficient; variation factor日变化系数: coefficient of daily variation; daily variation coefficient; daily variation coefficlent下载手机词典可随时随地查词查翻译