The temporal variation of the evaporation in all seasons at Xisha and its relation with sunshine duration and the near surface wind-speed are studied with the observed potential evaporation,sunshine duration and near surface wind-speed data from 1962 to 2004.
用中国西沙站1962-2004年月蒸发量、日照时间和近地面风速资料,分析了西沙各季节蒸发量的时间变化特征及其与日照时间、近地面风速变化的关系。
Due to local terrain factors such as slope,aspect and terrain inter-shielding, the insolation duration over rugged terrain is different from over horizontal surface.
由于坡度、坡向和地形之间相互遮蔽等局地地形因子的影响,实际起伏地形下的日照时间与水平面上的日照时间有一定差异。
AN ANALYTICAL STUDY ON EID AND ESA ON A SLOPE;
坡地等日照时间和等日照方位的解析研究
There' re fewer hours of sunlight in winter.
冬天的日照时间较短。
There are fewer hours of sunlight per day.
每天的日照时间较短。
As autumn advances the days are close in and the hours of light become fewer and fewer.
秋日将临，白昼渐短，日照时间越来越少。
We need to know how many hours of sunshine we have and how strong it is.
我们需要知道日照时间和强度。
London has on average 7.6 hours of sunshine per day during May .
伦敦五月份每天平均有７.６小时日照时间。
It is because in the height of summer, the daylight can last for up to24 hours.
因为在仲夏，日照时间可以维持二十四小时。
The year's total duration of bright sunshine of 1558.2 hours was the shortest recorded.
本年录得总日照时间为1558.2小时，是历年最低纪录；
With more than3,000 hours of sunshine annually, Lhasa is famed as" the City of Sunshine".
拥有年日照时间3,000小时以上，拉萨以“阳光城市”闻名。
Solar energy will be useful as an energy source or fuel displacement during the sunny hours under favorable economic conditions.
在有利的经济条件下,太阳能可在日照时间内作为能源或代替燃料。
Average annual Hours of Sunshine (h)
年日照时数（小时）
The sunshine didn't last long.
日光照耀的时间并不长（阳光从云后出来的时间不长，又隐没了）。
In laboratory tests, monarch butterflies were found to fly in the right direction under normal daylight hours.
实验室里，按照正常日间时间活动的蝴蝶能够始终坚持正确方向；
Discussions on the Sampling Time Interval in Sunshine Computation of Buildings
对建筑日照计算中采样时间间隔参数问题的探讨
The image was taken during Cassini's most recent flyby, when it passed by on September 23, 2006.
该照片是在卡西尼最近的一次飞越时拍摄的，时间是2006年9月23日。
Avoid extended periods of sunbathing, especially during the afternoon where the sun is very strong.
不要进行时间过长的太阳浴，尤其在午后日照强烈的时候。
day care for pre-school children
学前儿童日间照顾服务
Post offices remain open during lunch, but most are closed on Saturday and Sunday.
邮局在午饭时间照常开门营业，但大多在星期六和星期日休息。
A positive correlation existed between sedimentation value and average sunshine time in the period from heading to maturation.
沉降值、降落值与此期间的平均日照时数均呈正相关。