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The second experiment is to fabricate white light LED from red and green phosphors pumped by blue light LED. The blue light LED we used in our experiment has the wavelength range between 450 and 452.5 nm, and the chip size is 17 mil *14 mil. There are two kinds white light LED we fabricated in the experiment. There are three blue light LED chips bonded in single package of both kinds package. The different of the both packages is mixed phosphor of encapsulation. One of the experimental devices was encapsulated YAG phosphor mixed silicone to fabricate white light. The other is red and green phosphor mixed encapsulation. The compared and focused parameter was luminous efficiency. YAG phosphor pumped white light has the luminous efficiency 72 lm/W, CRI 70, CIE(0.32, 0.33), CCT 5622°K at the operating current 60mA. On another hand, red and green phosphor pumped white light LED has the luminous efficiency 55 lm/W, CRI 90, CIE(0.31, 0.32), CCT 6479°K at the operating current 60mA. We fabricated the red and green phosphor pumped white light LED, and proved that it could has much higher CRI under similar compared conditions, CIE xy and CCT.

第二个实验是使用蓝光LED晶粒来制作白光元件,蓝光LED晶粒波段范围在450 ~ 452.5 nm,晶粒大小为17*14 mil,以三颗蓝光LED晶粒搭配YAG萤光粉(黄绿光 540 nm)制成白光元件,再以另外三颗蓝光LED晶粒搭配红色萤光粉(613 nm)混合绿色萤光粉(519 nm)制成的白光元件进行发光效率比较;搭配YAG萤光粉的白光元件在注入60 mA的电流时所量测到最大的发光效率是在72 lm/W,演色性数值大约为70,CIE色度座标为(0.32, 0.33),色温是在5622 °K;而搭配红色萤光粉混合绿色萤光粉的白光元件在注入60 mA的电流时,最大的发光效率在55 lm/W,演色性数值大约为90,CIE色度座标为(0.31, 0.32),色温在6479 °K;证明了蓝光LED晶粒搭配红色萤光粉混合绿色萤光的白光元件演色性指数可以高达90 以上的结果。

Between natural expansion training and physical there are some natural similarities, of course, there are also some differences.

原汁原味的拓展训练与体育项目存在着天然的相同之处,当然也存在着一定的差异。

There are old pilots and there are bold pilots.

有老飞行员,也有勇敢的飞行员。

In the form of performance, flexible and diverse, there are dozens and even hundreds of people who play the drum, there are 25 members of the string playing is Yasugongshang, white mass entertainment from music art form, has strong vitality and attractiveness.

演出形式,灵活多样,有几十人以至上百人的大锣鼓演奏,也有二五人组成的弦乐演奏,是雅俗共赏,群众性白娱自乐的艺术形式,具有强大生命力和吸引力。

Considering other differences that in leaves of Podocarpus there are three resin ducts under vascular bundle of midrib, mesophyll cells are differentiated into palisade tissue and sponge tissue; in leaves of Nageia, there is only one resin duct under vascular bundle in each vein and no obvious differentiation in mesophyll cells, palisade tissue can be found on both sides, and sclereids can also be found in mesophyll tissue.

结合罗汉松属植物主脉维管束下面有3个树脂道,叶肉分化为栅栏组织和海绵组织,而竹柏属植物每个叶脉维管束下面有1个树脂道,叶肉分化不明显,两面都有栅栏组织,叶肉中还具有大量石细胞等特征,认为罗汉松属和竹柏属在叶脉、叶形态和结构方面存在明显差异,2个属分开是比较合理的。

There are three fundamental stratagems:(1) construct new economical ecol-ogy structure----to disconnect input of environment resources and economy de-velopment;(2) establish precautious landscape policies----there are three relatedand coinstantaneous processes: aggravation of landscape damage, knowledgeacquiring and public awareness.

同时,本文建设性地提出了景观恢复的3个基本方略:(1)确立新的经济的生态结构——使环境景观的投入与经济增长脱钩,通过4大投入要素与GDP关系的举例,分析讨论了生态结构与经济结构改变的趋势;(2)制定预防性景观、环境政策——通过损害环境、景观的代价举例分析,讨论了环境政策制定有三个相互关联而且同时发生的过程:环境景观损害日益加重、加剧;人类获取技术知识;公众觉悟。

There are positive effects about price war to enterprises, but there are also some negative impacts.

打价格战对企业来说有很大的积极的效应,也存在一定的负面影响。

Similarly, there are simple randomized in-place algorithms for primality testing such as the Miller-Rabin primality test , and there are also simple in-place randomized factoring algorithms such as Pollard's rho algorithm .

类似地,对於质数测试有简单的随机化原地算法像是米勒-拉宾检验,也有简单原地随机化整数分解算法像是 Pollard's rho 算法。

There are many men and women who wouldn't think of engaging in the procreative act in certain places of the world, and there are other places in which nothing seems more right and pleasant.

许多男男女女不会考虑在世界的某些地方繁衍生息,而却把另外一些地方看成十全十美的乐土。

Ms. Prue, for her part, says even if there are healthy properties in raw milk,'there are other ways to get the benefits that raw milk has to offer, and it just isn't worth the risk.

普鲁说,就算生奶中有一些健康物质,也能通过其它方式获得,不值得为此冒险。

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推荐网络例句

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。