Pearl color can vary in shades of white , brown , silver , cream , black or pink depending on the type of mollusk and the water where the mollusk lived . natural pearls are very rare and quite expensive 更值得一提的是，澳洲南洋珍珠的美丽光泽是天然的，不必象其它珍珠那样依赖于漂白染色的人为加工，所以也没有因漂白剂变质而“人老珠黄”之虞。
Map information and enemy buildings scouts reveal will continue to be displayed in shades of grey long after the plane has been shot down ; you can mouse over these areas to see how old the information is 即使侦察机被击毁后很长时间，它所发现的地图信息，敌方建筑物，仍然会被显示在灰色的阴影中；你把鼠标放在上面就可以看到这些信息有多久了。
He turned round , revealing that what had seemed from the back like a harmless navy sweater was actually a v - neck diamond - pattern in shades of yellow and blue - as favoured by the more elderly of the nation ' s sports reporters 他转过身，露出从背后看起来像无害的海军毛衣，是全国较年长体育记者所喜欢穿的那种，实际上是v领钻石型黄蓝相间的图案。
Snails living among boulders in open , sunlit habitats , are often large , and have sturdy , somewhat coarse shells ; on the other hand , snails living on rock surfaces and in shaded hillside habitats have small , thin , very fragile and smoother shells 分布有大块石灰石或花岗石的敞开环境蜗牛贝壳大，且厚而粗糙；山腰隐蔽环境及岩石蜗牛壳小，且薄而光滑。
T . media cv . hicksii seedling hi natural light has higher content of bound - water and water saturation deficit , bigger transpiration rate , and lower relative water content , stronger ability of fighting loss water than that in shading light intensity conditions 自然光照条件下生长的曼地亚红豆杉幼苗蒸腾速率较大，叶片相对含水量较低，水分饱和亏缺值较大，束缚水含量较高，抗脱水能力最强。
Infrared lasers are also used to illuminate targets with a light invisible to the naked eye , but visible to those using infrared detection technology . infrared images are portrayed in shades of color onto a tv screen in the cockpit 美军还使用了红外线激光仪对轰炸目标进行照明，这种红外线肉眼是看不到的，但是红外线探测技术却可以感应得到，并且可以在战机驾驶舱中的电视屏幕上形成彩色的影像。
In shaded environment the microenvironment , plant morphological characteristics , leaf anatomical structure and physiological metabolism , endogenesis hormone and photosynthesis of turfgrass vary significantly in order to maintain energy equilibrium and grow well 摘要荫蔽环境下，草坪草的微生境、植株形态特征、叶片解剖结构以及内源激素、光合等一系列生理代谢过程都发生了显著变化，以保证在弱光下仍能维持生长所需的能量平衡，进行正常的生命活动。
There was large interpopulation and intrapopulation variation in shell colour . in general , the distribution of the shell colours was not completely random . populations living in shaded places , characterized as dim and humid , had a high frequency of dark shells , while populations living in sunny and relatively dry , open places had lighter shells 尽管如此，分析结果表明贝壳颜色的分布并非完全随机，遵循一定的分布规律；在阴暗潮湿的隐蔽环境中生活的蜗牛贝壳颜色深，而在阳光充足，相对干燥的敞开环境中的蜗牛，却有浅色贝壳；与此同时，发现贝壳厚度同样随环境变化而变异。
Specialized in the design and production of versatile shades as well as home decoration lighting for europe and usa market , lighting included table lamp , floor lanp , wall lamp , pendant and the shade covers most kinds of styles in corrent market , lncluding hardback shade , softback empire , pleated , string shade , paper lanterns and various of handcraft wares in shades 专业生产设计各类欧美式台灯、落地灯、壁灯、吊灯和灯饰配件，其中包括硬底罩、宫庭软底罩、手折罩、平景/乱景罩、绕线罩、纸灯罩以及各类手工制造工艺品。
