1) morning and evening rush hours
早晚高峰时间
2) morning-evening rush hours
早晚高峰
5) evening peak
晚高峰
6) morning peak
早高峰
1.
A similar diel variation occurred to the two districts that higher carbonyl concentrations were shown in morning peak and nighttime than in other three periods.
羰基化合物的昼夜变化在工业区和商业区也比较一致,均是早高峰和晚上这2个时段的浓度很高,而其它时段较低。
补充资料：早晚
①早晨和傍晚：这药早晚各服一次。②副词。或早或迟。表示情况总有一天会出现：骄傲自大，早晚要失败。③时候：这早晚才来呀。
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