光

As the beam further propagation, self-reconstruction of the Bessel beam generated. The divergence of the self-reconstruction beam causes the beam intensity decreasing and the bright spot size increasing as the beam propagating.

当光束继续传播，贝塞尔光发生自重建(Self-reconstruction)，但重建的Bessel光将会发散，光强随着传播距离增大而迅速下降，且中心亮斑尺寸也迅速增大。

Shanghai Power Technology Co., Ltd is a photosensitive material professional seal manufacturer .1999 strong abundance photosensitive seal pad production, making China become the United States, Japan, after the third stamp pad capable of producing photosensitive and intellectual property rights have an independent country, the Chinese fill important gaps in the seal industry.

上海强丰科技有限公司(Shanghai Power Technology Co。， Ltd)是光敏印章材料的专业生产厂家。1999强丰光敏印章垫投产，使中国成为继美国、日本之后的第三个能生产光敏印章垫并拥有独立知识产权的国家，填补了中国印章业的重要空白。

The double-roll rice polisher Model MMPS 13 is the latest new machine developed and realized on the basis of the advanced rice polishing technology at home and abroad.

MMPS13大米双辊抛光机是在综合了当今国内外先进的大米抛光技术的基础上，最新研制的具有先进水平的新型大米抛光设备。

This 2×2 switch utilizes four collimators arranged 90° to each other on a common plane, and use an ultra thin mirror as the reflector whose thickness is less than 1.8μm and roughness 5.721nm to allow double-sided reflection.

在2×2光开关方面，设计上采四根光准直器呈90°相互垂直排列在同一平面上，以微机电技术制作出超薄双面反射镜当作光讯号反射元件，厚度： 1.8μm，表面粗糙度： 5.721nm。

Furthermore, to know the internal mechanisms of the BLU better, we also study the behavior of light inside the BLU.

为了更了解背光模组内部的光学机制，我们也分析光在背光模组中的行为。

In conventional polishing of LBO crystal,the polishing pad is pitch,the polishing abrasive is diamond.

传统的抛光LBO晶体的方法是选用金刚石抛光粉在沥青抛光盘上抛光。

The Spirulina yield can be enhanced effectively by the increase of illuminated area, aeration rate and temperature. A higher efficiency of light utilization was observed in 500ml mini PBR than in 64 l large PBR.

增加光照面积、提高通气速率和培养温度能够有效提高螺旋藻的产量。500ml小型光反应器比64 l大型光反应器具有更高的光效。

Our company introduced today the world's most advanced technology, equipment, materials and processes to produce light guide plate and the ultra-thin light box, relying on a strong scientific and technological advantages, has become the most professional and largest fine light guide plate, light ultra - thin light box companies.

我公司引进当今全球最先进的技术、设备、材料及工艺来生产导光板和超薄灯箱，凭着强大的科技优势，现已发展成为国内最专业、最具规模的优秀导光板、导光板超薄灯箱企业。

For the leaf area index of the three forest types, there was a similar variation trend, i.e ., increased first and decreased then, with the maximum presented in mid-July or August for Q. mongolica and J.mandshurica forests while in mid-August or September for F. rhynchophulla forest. The canopy porosity of the three forest types also had a similar variation trend, but opposite to leaf area index, being decreased first and increased then, with the minimum presented in mid-June, July, August or September. The analysis of variation coefficients of leaf area index, transmitted direct gap light, and transmitted diffuse gap light indicated that the spatial pattern of leaf area index in July-September was the main factor affecting the spatial distribution of transmitted diffuse gap light.

结果表明，3种林型的叶面积指数变化总体趋势是一致的，均呈先上升再下降的单峰曲线，蒙古栎林和胡桃楸林都是在7月中旬或8月中旬达到最大峰值，花曲柳林是在8月中旬或9月中旬达到最大峰值；3种林型冠层孔隙度的变化总体趋势也是一致的，呈先下降再上升的单峰曲线，不同样地峰值出现的时间也不同，最低峰值在6、7、8、9月中旬均有出现；通过对不同月份的叶面积指数、林下散射光、林下直射光的变异系数分析表明，7—9月叶面积指数的空间格局是影响林下散射光空间分布的主要因素。

British original kemet planar face specular lapping machine, and two units for various types of supplies, professional and various light mould backlighting formwork-planar optical specular lapping and polishing.

英国原装kemet平面光学镜面研磨机组二台和各类专用耗材，专业各类导光板和背光板模仁的平面光学镜面研磨和抛光。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。