已知的是，二苯甲酰甲烷及其衍生物对紫外辐 射相对敏感，且它们在日光作用下迅速分解。
It is known that dibenzoylmethane and its derivatives are relatively sensitive to ultraviolet radiation and they decompose rapidly under the effect of sunlight.
太阳能电池板只能在日光下起作用。
我将这次探索的结果称为日光图，在于借着光的作用自发再现。
The discovery I have made and which I call Heliography, consists in reproducing spontaneously, by the action of light.
另有一些医生和研究人员们呼吁美国食品和药物管理局作出更大努力，告知公众日光浴床的相关副作用。
Other clinicians and researchers are calling for the U.S. Food and Drug Administration to increase its efforts to warn the public about the adverse effects of tanning beds.
我将这次探索的结果称为日光图，在于借着光的作用自发再现……
"The discovery I have made and which I call Heliography, consists in reproducing spontaneously, by the action of light…"——Joseph Nicéphore Niépce.
日光温室为农业增效、农民增收发挥了巨大作用，农民对此的投入也逐渐增加。
Sunlight greenhouse plays a great role in elevating agriculture efficiency and raising farmers' income, also the input on it is increasing accordingly.
杰夫：我也是，因为游泳是一项十分有益的体育活动，它把水浴、日光浴和空气浴结合在一起，对人体的肌肉、骨骼、内脏器官和神经系统的生长、发育和健壮都有积极的促进作用。
Jeff: me too. swimming is a very good exercise for health. it combines water bath sunbathe and air bath together. it promotes the growth and haleness of muscles bone viscera and nerve systems.
染料的耐光汗稳定性，是指纺织品上的染料对它在服用过程中所受人体汗液和日光共同作用影响的抵抗力。
The light-perspiration stability of dyes is defined as the resistance of dyeings to fading caused by the synergetic effect of light and human sweat.
绵羊罩衣可减少被毛中植物杂质及灰尘含量，防止毛丛顶端的日光风化，提高羊毛生长速度及羊毛品质，增加净毛产量。 在较冷地区还有御寒保暖作用。
Sheep overclothes can keep warm and prevent top of staple from insolation weathering and decrease the impurity and dust, increase wool yield and quality especially in chilliness area.
本研究构建了日光温室黄瓜冠层光合作用数学模型。
The row-crop plant stand architect and canopy photosynthesis models are combining to construct sunlight greenhouse cucumber canopy photosynthesis in this paper.
本研究构建了日光温室黄瓜冠层光合作用数学模型。
The row-crop plant stand architect and canopy photosynthesis models are combining to construct sunlight greenhouse cucumber canopy photosynthesis in this paper.
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