diurnal

adj.

1. 日间活动的；昼行性的
   active during the day
2. 周日的
   taking one day
   1. the diurnal rotation of the earth
      地球的周日自转

1. ADJ 白昼的;白天的;日间活动的
   Diurnal means happening or active during the daytime.
   1. Kangaroos are diurnal animals.
      袋鼠是日间活动的动物。

1. Diurnal variation of absolute humidity at all levels was higher in a day, and lower at night.
   所有层次绝对湿度日变化为白天高，夜晚低；
2. The typical diurnal variation characteristic of SO2 concentration, the main source and the meteorological factors that influence the pollutants were analyzed.
   并对SO2典型日变化趋势、主要污染源以及气象条件对污染物浓度分布的影响进行了分析。
3. Study on diurnal variation of photosynthesis for Medicago sativa in arid area
   干旱地区紫花苜蓿光合日变化规律研究
4. The diurnal cycle in circulation and cloudiness over the Subtropical Southeast pacific: a modeling study.
   副热带东南太平洋环流和云量的日循环：模拟研究。
5. Effects of land use type on diurnal dynamics of environment microclimate in Karst zone
   土地利用方式对喀斯特地区环境小气候日动态的影响
6. Increase of peak intraocular pressure during sleep in reproduced diurnal changes by posture
   通过昼夜体位变化的再现研究睡眠中眼压峰值的增加
7. The purpose of reoccupations is to keep track of diurnal variations in the earth's field.
   重测的目的在于记录地磁场的日变。
8. Diurnal animals are active during the day; diurnal flowers are open during the day and closed at night.
   昼行性动物是在白天活动的；白日花是在白天开放、晚上关闭的。
9. Over water the diurnal change in refraction is likely to be small.
   在水面上，折光的周日变化可能是很小的。
10. Desert plants, faced with severe diurnal temperature fluctuations and acute water shortage, only grow very slowly.
    沙漠植物面对白天严重的温差及水资源的极度缺乏，只能缓慢地生长。
11. Processing of secular variation and disturbance related to marine geomagnetic diurnal variation correction
    与海洋地磁日变改正有关的长期变化和磁扰的处理
12. Diurnal Variations of Air Temperature and Relative Humidity in the Surface Layer on Clear Day in Summer in Marsh
    夏季晴天沼泽湿地贴地气层气温和相对湿度日变化特征
13. Visual simulation on diurnal variation of rice leaf shape
    水稻叶片形态日变化过程可视化模拟研究
14. The selection of base value is critical to the geomagnetic diurnal variation correction in marine magnetic survey.
    地磁日变基值的选取是海洋磁力测量地磁日变改正的重要内容。
15. Analyzing to Diurnal Variation Photosynthetic Characteristics among Xiamen Urban Greening Tree Species under Different Habitats
    不同生境下厦门城市绿化树种光合作用的日变化特性分析
16. Effects of the grazing systems on diurnal variation of photosynthetic characteristic of major plant species of desert steppe
    放牧制度对短花针茅荒漠草原主要植物种光合特性日变化影响的研究
17. Diurnal variation of UV index on a sunny day.
    在阳光充沛的日子里，紫外线指数的日际变化。
18. No diurnal rhythm was detected.
    没有发现昼夜节律。
19. Conclusions Clinical diversity and diurnal fluctuation are the characteristics of DRD.
    结论DRD患者具有症状多样及日间波动的特点。
20. Diurnal rhythms; diurnal rotation of the heavens; the diurnal slumber of bats.
    昼夜节律；天空的昼夜轮转；蝙蝠每日的睡眠。
21. Study on Diurnal Variation of Microclimate Characteristics of Three Forest-tea Compound Systems
    3种林茶复合系统小气候特征日变化研究
22. Effects of temperature, body weight and diurnal rhythm on metabolism of Scophthalmus maximus
    温度、体重和昼夜节律对大菱鲆幼鱼代谢的影响
23. His domestic life had led him to strictly diurnal habits, and by sundown he was always asleeo.
    他的家庭生活使他严守白天工作的习惯，到日落时他总是已经蘸了。
24. Meteorological factors had no impact on the diurnal centroid for latent heat flux.
    潜热通量日变化峰值时间与气象要素关系均不显著。
25. Influence of Enhanced UV-B Radiation on Diurnal Variations of Respiration Rate and N_2O Emission from Winter Wheat Ecosystem
    UV-B辐射增强对冬小麦生态系统呼吸速率和N2O排放日变化的影响
26. We exposed both nocturnal and diurnal, or day-active, rodents to different light levels.
    我们既把夜间活动的、也把日间活动的啮齿动物置于不同等级的光照环境中。
27. The tidal pattern is complex due to the relative effects of the diurnal and semi-diurnal components.
    由于日昼和半日昼因素的相对作用，潮汐涨退模式颇为复杂。

adj

1. of or belonging to or active during the day
   1. diurnal animals are active during the day
   2. diurnal flowers are open during the day and closed at night
   3. diurnal and nocturnal offices

2. having a daily cycle or occurring every day
   1. diurnal rotation of the heavens