光像

Photo Gallery: The Moon A sliver of moon sits above a perfect cross-section of Earth's atmosphere, including rarely seen noctilucent clouds, wispy formations that appear about 50 to 60 miles (75 to 90 kilometers) above Earth's surface.

像一块薄片的月亮位于地球的一个完美的横截面之上，包含很少见到的夜光云层在顶端――小束状的排列那显示约有50～60英里（75～90公里）在地球的表面。

This "noctilucent cloud" occasionally appears when the earth is first cloaked in the evening dark-ness; shimmering above us with a translucent whiteness, these clouds seem quite unnatural.

这种&夜光云团&偶尔出现于夜幕开始笼罩大地的时候，它呈半透明的白色，在高空中闪烁发光，看起来颇不像自然之物。

Grounding on the purpose of industrialization of laser, based on the thought of astigmatism compensation and thermal stability of the cavity, we employed high power LD to pump Nd:YVO4 crystal and used the introcavity frequency doubling with type 1 noncritical phase-match LBO crystal, which has high damage threshold. The cavity parameters are optimized by the use of ABCD theory and the resonatorstructure CAD software.

立足于激光器的产品化，基于谐振腔的像散补偿和热稳定性的设计思想，采用大功率LD单端泵浦Nd：YVO_4晶体，具有高光损伤阈值的Ⅰ类非临界相位匹配LBO晶体腔内倍频方案，应用ABCD定律和腔结构模拟软件CDA设计并优化了一组腔参数。

What he wanted for Sydney was the effect he had noticed when tacking round the promontory at Elsinore, of the castle's piled-up turrets against the piled-up clouds and his own billowing white sails; the liberation he had felt on the great platforms of the Mayan temples in Mexico, of being lifted above the dark jungle into another world of light; the height and presence of Gothic cathedrals, whose ogival shape was to show in the cross-sections of the Sydney roof-shells; and the curved, three-dimensional rib-work of boat-building , as he had watched his own father doing it at Aalborg.

当他在艾尔西诺海岬旁作之字形航行时，天边积云朵朵，海水蓝天融为一色，海风一过，巨大的白帆随之鼓起，城堡上层叠而立的塔楼在一片湛蓝中像条游龙飘忽不定。如此景致早已收藏于心。他所向往的悉尼巨作不正是这幅美景的再现么？当他伫立于墨西哥玛雅寺庙辽阔的平台之上时，那份无拘无束的洒脱正从昏暗的丛林中抽身而出，徐徐升腾，遁入另一个光的世界。这不羁的心不正是他想施予悉尼的么？还有那直插云霄的哥特式大教堂，它们的伟岸和雍容时时撞击着他，剖开未来悉尼歌剧院的扇形穹顶吧，横截面上所展示的不正是带着尖顶拱的外形么？当他在奥尔堡傻傻地看着父亲建造船坞时，那有着优美弧线的三维肋拱结构不也是激活他未来创作的源泉么？

Meguiar's has been the leader in creating paintable, body shop safe products because of our history and continuing leadership in creating state-of-the-art formulas for use by new car manufacturers as well as the collision repair and custom painting industries.

美光已经是漆面保护的领先产品了，因为它的历史和持续不断的创造精湛的配方给汽车制造厂，像给碰撞的漆面的修补和普通的漆面行业等。

According to the need in evaluation of the crack in structure, the author of this paper developed a new system based of photoelastic mechanics and digital image proccessing , which is specialy used to measure the length and width of crack.

本文针对工程结构开裂评估的需求，运用光测力学原理与近年间迅速发展起来的图像处理新技术，研究开发了一套&像素法&裂纹长度和宽度参数测定的新系统。

METHODS: A total of 243 cases (408 eyes) of developmental amblyopia underwent comprehensive therapy including glasses, eye-shade, red light glitter, photogene and eyesight exercise.

对243例发育性弱视患者进行包括验光配镜、遮盖治疗、红光闪烁治疗、后像疗法、精细目力训练等的综合治疗。

This cannot occur so long as any photospheric rays are visible through deep valleys along the Moon's limb Meeus et al.

这种情况不会发生像光球层现象所说的那样穿过峡谷沿着月球边缘。

Carnivorous species photosynthesize like other plants, but most live in bogs and other nutrient-poor habitats.

食肉植物像其他植物一样进行光和作用。但是，大部分食肉植物都分布在沼泽地和其他贫瘠环境中。

Carnivorous species photosynthesize like other plants, but most live inbogs and other nutrient-poor habitats.

食肉植物像其他植物一样进行光和作用。但是，大部分食肉植物都分布在沼泽地和其他贫瘠环境中。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。