短語詞組短語at t intervals 不時;每隔At required intervals 在規(guī)定時間Automatically At Regular Intervals 自動定期at stated intervals 每隔一定的時間;翻譯at fixed intervals 每隔一定時間menstruation at irregular intervals 月經(jīng)愆期at random intervals 間隔時間不固定sampling at fixed intervals 固定采樣頻率 返回 at intervals