极地中层云也被称为夜光云层（noctilucent）（就是在夜晚还闪光的云）。这一特点在这张太空照片上显露无疑。
Polar mesospheric clouds are also known as noctilucent or “night-shining” clouds—a property that is clearly visible in this astronaut photograph.
利用拉塞尔NASA项目获得的数据绘制的夜光云效果图。
Captured by flickr user, breff 3. A rendering of the noctilucent clouds created from data obtained by Russel’s NASA project, AIM.
以下可以对比自然形成的夜光云看起来来是怎样的
Here's what a naturally-occuring noctilucent cloud looks like, for comparison
通过测量夜光云反射的光的变化，他们发现夜光云从盛到衰的周期大约为27天。
By measuring changes in the light reflected from the clouds, they found that the clouds appear to wax and wane in prevalence over a 27-day cycle.
质量轻便，可漂浮于水面，绳体用鲜艳的橘红色或橘黄色亮色系为主，具有反光和夜光功能，在危险时刻容易辨识，为生命保驾护航。
Light and float, the rope body in bright orange or orange light system is given priority to, with functions of reflective and luminous, which is easy to distinguish in danger.
研究了影响夜光开关辉度的因素。
The influencing factors of the brightness of luminescent switch were studied.
本发明涉及一种通过原位聚合技术制备抗沉降的丙烯酸夜光树脂的新方法。
The invention relates to a novel method for preparing anti-settling luminous acrylic resin by in-situ polymerization technology.
本发明公开了一种夜光皮球，其皮面是透光的，球内设有电源和电控发光元件。
This invention discloses a noctilucent leather ball. Its leather facing is photic, power supply and electric control luminous element are set in the ball.
介绍了一种新型夜光涂料的发展前景及其在装备中的应用，论述了其制备方法和特性。
Development prospects and its applications in equipments of a new luminous paint are introduced. Preparation process and features are discussed as well.
传统的夜光涂料都依靠放射性物质发光。
Conventional luminous paints all used to rely on radioactive substances to generate their afterglow.
一阵微风拂过。他的手表上的夜光针刚过了两点。
There was a slight breeze and the luminous hand of his watch registered just after two.
探讨了夜光开关材料回收时存在的问题并提出了相应的解决办法。
The problems occurred in recycling material of luminescent switch was analysed and the solving method was put forward.
而且也能根据自己的喜好随时更换夜光粉的颜色，起到美观装饰的作用。
In addition, the colors of the luminous powder can be changed at any time according to self fondness, and the artistic and decorative effect can be obtained.
他的手表上的夜光针刚过了两点。
There was a slight breeze and the luminous hand of his watch registered just after two.
尽管我们认为夜光云由裹着冰的小微粒组成，但仍有许多未知有待研究。
Although noctilucent clouds are thought to be composed of small ice-coated particles, much remains unknown about them.
最近有线索表明，至少部分夜光云是由航天飞机上排出的水蒸气结冰所导致的。
Recent evidence indicates that at least some noctilucent clouds result from freezing water exhaust from Space Shuttles.
简述了稀土夜光纤维的发光原理及其功能特性，分析了该纤维的服用性能及应用领域。
In this paper, the illuminant principle and functional characters of rare earth noctilucent fibers were summarized, and then analyze its wearability and application area.
下图拍摄于本月上旬，图中是夜幕降临后，网状的夜光云给加拿大阿尔伯达省埃德蒙顿的夜空织出的奇异景色。
Pictured above earlier this month, a network of noctilucent clouds cast an eerie white glow after dusk, above the the city of Edmonton, in Alberta, Canada.
你为什么要买一个有夜光沙的蚂蚁农场?。
夜光陀螺是集健身、娱乐、欣赏于一体的运动型体育玩具；白天、晚上均可以娱乐使用，特别在夜晚效果最佳。
Noctiluca Gyro is a fitness, recreation, to enjoy in one sport Sport toys; daytime, evening entertainment can be used, especially at night best.
利用拉塞尔NASA项目获得的数据绘制的夜光云效果图。
The sky over Omaha on July 14th, snapped by Mike Hollingshead at Extreme Instability 2. A rendering of the noctilucent clouds created from data obtained by Russel’s NASA project, AIM.
这本书被我从加拿大带到这个夜光之城，它，也只有它，伴随我一路走进这个城市，开始新的生活。
It was the only book I brought all the way from Canada for my new life in the city of lights.
当这种情况几乎每夜光临时，与其辗转反侧，倒不如想好怎样快速入睡，这决定了你的生活质量和健康。
When this becomes an almost nightly occurrence, figuring out how to fall asleep quickly instead of tossing and turning till dawn could becomes critical for your quality of life and your health.
看看我的新手机。这是我的生日礼物。它有夜光键盘，会发光的天线。
Amy: Look at my new cell phone. It's my birthday present. It has a glow-in-the-dark keypad and a flashing antenna.
科学家们很久以前就发现，昼夜光线的变化对于设置生物钟起着重要的作用。
Scientists have known for a long time that the light of day and the dark of night play important roles in setting our internal clocks.
两种方法合成的夜光玻璃发光性质存在着明显的差异。
The differences for the excitation and emission spectra of one step method and two steps method were observed.
两种方法合成的夜光玻璃发光性质存在着明显的差异。
The differences for the excitation and emission spectra of one step method and two steps method were observed.
应用推荐