1. Along with hawks, falcons, kites and buzzards, they are diurnal raptors, which means they hunt by day. 与苍鹰、秃鹰、鸢和兀鹰相同，它们都是白天出动进行捕猎的食肉鸟类。
2. The effect of gasoline-alcohol on evaporative emission is also analyzed by diurnal respiration test on fuel tank. 通过对油箱进行昼间呼吸试验，研究了醇类汽油对蒸发排放量的影响；
3. Its diurnal change is consistent with that of the heating field's, especially with diurnal change of the solar heating. 环流日变化是被非绝热加热的日变化所驱动的，特别是被太阳辐射日变化所驱动。
英英解释
adj.
1. belonging to or active during the day
2. having a daily cycle or occurring every day
