无光的

Another approach in enhancing the light extraction efficiency of AlGaInP LED was accomplished using a surface roughening process. In this process, the Au(170 nm)/AuBe(260 nm)/Au(170 nm) ohmic contact layers were first deposited on the GaP window layer. After the alloy annealing process (480°C for 10 min), the Be atoms will diffuse into the GaP top layer and form non-uniform clusters. The LED samples were then immersed into a mixture 3H3PO4:1H2O2:1H2O solution for 6 min, resulting in a rough GaP surface. The luminous intensity of the AlGaInP LED can increase from 42 to 50 mcd, that is, an 18% enhancement can be achieved via the present non-photolithography surface roughening process.Keywords: LED, AlGaInP, Cu substrate, Reflector, Surface roughening

在实验的第二部份是开发磷化镓窗口层之粗化制程，我们是藉由正面金/铍欧姆接触电极之熔合制程，使铍扩散至磷化镓层，同时利用铍渗入磷化镓造成之特殊组成，可形成不均匀之蚀刻阻挡，而在磷化镓表面形成粗化，我们发现480℃、10分钟的熔合制程，加上浸泡磷化镓蚀刻溶液6分钟，可将四元发光二极体之发光亮度由42 mcd 提升到50 mcd，经由此无光罩粗化制程可将亮度提升18%，明显提升磷化铝铟镓发光二极体之外部量子效率。

Music also gives color to one's life; without it, life would seem to be black and white, dull and boring.

音乐还能为我们的生活增添色彩。没有它，我们的生活将暗淡无光、索然无味。

Matt finished paper: Paper with a dull egg-shell surface.

无光纸：有着像鸡蛋壳的暗淡色调的纸。

The whole idea gained little attention in the 19th century, since light was thought to be a massless wave, not influenced by gravity.

整个想法在第19世纪自从光被认为是无质量的、不受引力影响以来得到很少的关注。

By thermally bonding the YAG crystal with 2 mm thick Nd∶YAG crystal,the Porro prism supplies multi-functions such as laser amplification,closuring the light path,polarization sensitivity to the 946 nm and so on.

直角棱镜由无掺杂的YAG晶体和2 mm厚的Nd∶YAG晶体热键合形成，可提供激光增益、光路闭合及对946 nm激光起偏等多种复合功能。角锥棱镜由熔融石英材料构成，在环形永磁铁作用下，提供法拉第旋转作用。

With nuclear sclerosis, a reflection from the tapetum will be seen, while a cataract will block reflection.

晶状体核硬化的犬只在收到电筒照射时绒毡层的反射光可见，而白内障患犬则无光反射。

In morgantown the rooms were dim, the murky green or turquoise of pond water, and the doctors had been hurried, brisk with them, distracted.

摩根城里的房间阴暗无光，混浊的池塘水色墨黑或蓝绿，医生们来去匆匆，对他们虽然亲切，却心不在焉。

A heavy unglazed cotton, linen, or rayon fabric, colorfully printed and used for draperies and ''.

大花窗帘棉布一种色彩绚丽的结实的无光棉布、亚麻布或人造丝织物，用于作窗帘和家具套

The flower of this plant.A heavy unglazed cotton, linen, or rayon fabric, colorfully printed and used for draperies and slipcovers.

大花窗帘棉布一种色彩绚丽的结实的无光棉布、亚麻布或人造丝织物，用于作窗帘和家具套

Mammography alone was diagnostic in 55% of asymptomatic screened patients and in 61% of unscreened patients.

乳房X光摄影本身的诊断结论，在无症状的病患中，有55%接受过检查，61%没有接受过检查。

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。