褪光

The light of his life began to go out, and fade.

他的生命之光开始减弱、消褪。

As a hormone melatonin may play a key role in circadian rhythmicity and seasonal photoperiod regulation, also in sleep regulation and immunological enhancement.

褪黑素作为一种动物激素，可以调节脊椎动物生物节律和光周期反应，改善睡眠障碍，增强免疫等，并具有自由基清除剂和广谱抗氧化剂的作用。

The skillful application of various materials and the updating of the treatment approaches become a new form of expression as well as one factor enlightening the artist: the painting pigment for Zangzuxiangba adopts the natural ores and plant raw materials which is produced on snow-covered plateau and characterized by pure color, high quality, good light fastness, strong weather resisting property, fast coloring and gorgeous but not ordinary hue; the paper for Zangzuxiangba is Tibetan paper taking radix stellerae chamaejasmes and agilawood produced on snow-covered plateau as raw materials and manually manufactured by scores of procedures, thus having such properties as corrosion protection, mothproof property and dampproof property.

同时，藏族祥巴在颜料和用纸应用上也不断探索和创新，其对各种材料的巧妙应用和处理手法的更新，不仅成为一种新的表现形式，也成为启迪艺术家创作灵感的因素之一：藏族祥巴的绘画颜料采用产于雪域高原的天然矿、植物原料，色泽纯正、品质优异，耐光极佳，耐候性极强，具有色彩历久不褪、色相艳而不俗的特点；藏族祥巴的用纸是用产生高原雪域的瑞香狼毒、沉香等为主要原料，经数十道工序手工制作而成的藏纸，具有防腐、防蛀、防潮的特性。

Contrastingly, we show here that during the reproductive response of Soay sheep exposed to summer day lengths, the reverse applies: Melatonin acts directly on anterior-pituitary cells, and these then relay the photoperiodic message back into the hypothalamus to control neuroendocrine output.

比较而言，我们在这里说明，在暴露于夏季日照长度的索艾羊生殖反应期间，反向应用：褪黑激素直接作用于垂体前叶细胞，然后这些细胞把光周期信息返回下丘脑控制神经内分泌输出。

Melatonin is a hormone produced by pineal gland. As a synchronizer of endocrine system bioclock in vertebrate, melatonin possesses many physiological activities,e.g. regulating the biologic rhythm according to photoperiod, by its receptors widely distributed in pituitary gland, hypothalamus, optomeninx, kidneys, skin and its appendages, etc.

褪黑素主要是由松果体合成的一种激素，作为脊椎动物内分泌系统生物钟的同步器，其受体广泛分布于垂体、下丘脑、视网膜、肾脏和皮肤及其附属器，有着多种生理活性，按光周期信号调节生物体昼夜节律和季节节律。

Melatonin ; evolution ; photoperiodic signal ; free radical ; cytoskeleton

褪黑素；生物进化；光周期信号；自由基；细胞骨架

The process of dulling a surface, as of metal.

褪光表面褪光过程，金属的褪光

The types of latent virus pathogens in five principal apple culti- vats such as Starking/Golden Delicious/Qin Crown Apple/ Rails/Red Fujica in Shaanxi and Gansu Province were identified during 1984— 1985,whose results were as follows:these principal apple cultivars usually carried Apple Chlorotic Leaf Spot Virus,Apple Stem Pitting Virusand Apple Stem Grooving Virus.

1984—1985年对陕西、甘肃的红星、黄元帅、秦冠、国光和红富士五个苹果主要栽培品种，进行潜隐病毒毒源种类鉴定，其结果是：这些主要栽培品种都普遍带有苹果褪绿叶斑病毒、苹果茎痘病毒和苹果茎沟槽病毒。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。