这就叫做“暗光适应”。你的眼睛花上一个钟头就可以完全适应光线暗淡的环境。
This is called "dark adaptation" and it takes your eye up to an hour to become fully adapted to seeing in low light conditions.
针对炮弹炸点光信号的强度与频谱特性，设计了一种基于自适应阈值的炸点时间测量系统。
According to the characteristics of ignition and explosion signals, a system for detecting the artillerys explosion time based on self-adaptive threshold is developed.
试验还表明施用氮肥可减轻光抑制的伤害程度及增强对强光的适应性。
Experiment also showed nitrogen fertilizer could reduce the damage of photoinhibition and improve the adaptability of rice to high light intensity.
提出三种新的利用空间光调制器(SLM)实现的动态范围扩展方法：时间域slm多次曝光，空间域光强编码调制，自适应PID反馈控制。
Three new dynamic range extend methods with spatial light modulator (SLM) are proposed: temporal SLM multi-exposure method, spatial light encoding method and self-adaptive PID feedback control method.
建筑的占地类似蛇形，围出四块大型的天井为建筑内部的办公室提供柔和的自然光，这样的设计也是为了适应印度德里严酷的自然环境。
The footprint of the building consist of a snake like shape that creates four large courtyards giving subdued light to the offices, adapted to the harsh climate of Delhi.
目前常用的网络理论模型如曼哈顿网络、洗牌网等均不能适应光分组网络研究的需要。
Now the theory network model such as Manhattan street network and shuffle net could not meet the requirements of optical packet switch network.
通用的光栏，可以精确地调节狭缝的高度，以适应各种尺寸样品的测试。
Allows precise adjustment of beam height to match samples of different dimensions.
它们以特定的方式被安装在外立面，使它们能够适应不断变化的日光，并控制光的流入。
They are mounted on the facade in a way which allows them to adjust to the changing daylight and desired inflow of light.
目的观察低氧预适应对小鼠视网膜感光细胞光损伤的防护作用并探讨其可能的机制。
OBJECTIVE to observe the protective effect on hypoxic preconditioning mice against light-induced photoreceptor cell degeneration, and investigate the possible mechanism.
应用电镜技术观察了刀额新对虾复眼的形态结构以及光、暗适应对其超微结构的影响。
The outside shape of Metapenaeus ensis and its ultrastructure under light and dark adaptation was studied by electron-microscopy technology.
这种光暗循环有助于我们的身体适应环境的变化。
This light-dark cycle is good for our bodies to predict changes in the environment.
结果表明，一品红具有较高的光饱和点和较低的光补偿点，是对光照强度适应能力较强的阳性植物，但不同栽培品种对遮荫环境的适应性有较大差异。
The results indicated that poinsettia was a sun plant with high light-saturation point and low light-compensation point. But the shade tolerance of different cultivars was different.
结果表明，植物光合作用-光响应曲线和光能利用效率能有效地评价植物对生长环境的适应性。
The results indicated that photosynthesis-light response curve and ILUE are useful to estimate the adaptation of plants to their habitat.
接着根据靶标图像和光斑图像在灰度特征上的差异，采用了最大类间方差自适应分割法实现了光靶图像的分割。
Thirdly, according to the differences of target images and spot images in gray-scale features, Otsu adaptive segmentation method is adopt to realize the image segmentation.
光刺激作用主要集中在视网膜中央窝的条件下，等亮度较弱的红光与绿光之间暗适应时间无显著差异。
When light stimulus was weaker and concentrated on central vision, there was no significant difference between a red light and a green light in the aspect of dark adaptation.
可见反枝苋的适应生长型极大地取决于光环境，即邻体间的拥挤程度(光竞争)。
Adaptative plant form greatly depends on light environment, which is the degree of crowding by neighbours (competition for light).
植物通过一系列光保护机制来抵御光氧化伤害，这些机制反映了植物在生理和生化以及形态结构等方面对强光环境的适应性。
However, series of photo-protective mechanisms can lessen or even eliminate photo-oxidation, reflecting the adaptation of plants to the high light intensity environments.
本文结合图像运动分析中的光流技术，提出了一种新的基于场景的连续校正算法，该算法具有较好的自适应性能。
Based on the optical flow technique in image motion analysis, a new continuous correction algorithm based on scene is proposed in the paper. The algorithm has a better adaptive performance.
近来，为了适应环保要求，用于表面加工的光油正逐步从溶剂型光油向水性光油转化。
Recently, in order to adapt to the demands of environmental protection, for surface finishing of varnish is progressively from solvent-based light oil to water-based conversion varnish.
利用叶绿素荧光测定可以为不同光照环境下的样地选择适宜的光适应树种。
The experiments showed that applying the chlorophyll fluorescence would be a good method to choose adapted species for the sites in different light environments.
利用叶绿素荧光测定可以为不同光照环境下的样地选择适宜的光适应树种。
The experiments showed that applying the chlorophyll fluorescence would be a good method to choose adapted species for the sites in different light environments.
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