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For choosing a material to interfere with IR and laser,the IR and 10.6μm laser transmissivity of micron-copper powders of different components were tested in the smoke chamber,when the concentration of the smoke reached 1.0 g·m-3,the transmissivity of 1~3μm,3~5μm and 8~14μm IR under 30%,and the transmissivity of 10.6μm laser under 20%,the attenuation ability of red copper powders,green and red copper powders and green copper powders to IR and 10.6μm laser increased gradually.At the same time,the interferent...

为选择一种能够遮蔽红外与激光的烟幕干扰材料，在烟幕箱中测试了组分配比不同的微米铜粉的红外与10.6μm激光烟幕透过率，当烟幕浓度为1.0 g.m-3时，1~3μm，3~5μm，8~14μm红外的透过率均小于30%，10.6μm激光的透过率小于20%，红光铜粉、青红光铜粉和青光铜粉对红外与10.6μm激光的衰减能力逐渐增强；同时测试了微米铜粉对红外热像仪的干扰效果，浓度为2.0 g.m-3时，青光铜粉能够完全遮蔽红外热像仪。

By deducing the calculation formula of luminaire efficiency and illuminance on working face, and analyzing a case of lighting, the paper can help lighting designers design efficient and excellent lumination by aptly using luminous intensity distribution curve.

结果 推导出利用配光曲线计算灯具效率和工作面照度的近似公式。结论灯具的配光曲线能够反映出灯具的许多重要特性，配光曲线在照明计算中提供又一便捷工具，正确利用灯具的配光曲线，对建筑照明设计具有重要的指导作用。

The properties of liquid crystal light value, including the response curves between input and projection beam in real, inversed, and differential state, also the relationship between the transmission of the liquid crystul and the working voltuge when different input beam lumination provided, are measured by facile method.

用简便易行的方法对液晶光阀的工作特性曲线作了测量，包括光阀在正像、反转像和微分像状态读出光强与写入光强的响应曲线，以及不同写入光照度下液晶层透过率与工作电压的关系曲线。

The anatase crystals of the TiO2 films connected together to form netlike structure after calcined, and th

在自制的光催化反应装置中以10mg/L甲基橙为降解对象，考察了TiO2薄膜的光催化性能，在4h内直接干燥的TiO2薄膜脱色率达到95%，经热处理后薄膜的光催化性能有一定提高，这说明采用AS溶胶前驱体制备的TiO2薄膜光催化性能良好。

Although LEDs do experience a gradual and permanent reduction in light output during their normal operating life - caused either by a reduction in the light-generating efficiency of the LED die, or a reduction of the optical path within the LED package - the Dialight street LEDs are expected to provide about 70 per cent of their original light output after 50,000 hours or 10 years, provided that they are not overdriven.

在正常操作下，LED必需要经历光输出逐渐减少的过程，而这个过程是会一直持续着的。导致光输出减少的原因可能是由于LED产生光的效率在降低，或者是由于LED压缩包内的光径在减少。不过，只要没有超负荷使用，Dialigh的LED路灯在工作50，000小时或10年后，还可以达到70%原始光输出的能力。

It indicate that 200μmol/m2s and 80μmol/m2s low light cause reactive oxygen species quick producing and SOD and CAT acticity enhance, but the latter's increasing cann't offset reactive oxygen species'quick producing, which lead to membrance peroxidize injury on peach tree. 30μmol/m2s low light's injury on peach tree mainly because reactive oxygen species'accumulation.

表明200μmol/m2s和80μmol/m2s的弱光下桃树抗氧化酶活性的诱导提高不足以抵消弱光下自由基的快速生成，从而导致对桃树细胞膜脂的伤害；30μmol/m2s的弱光下桃树活性氧的快速生成加剧膜脂过氧化程度，是造成弱光对桃树伤害的重要原因之一。

While in photoreduction of Cr , the titania-modified MCM-41 photocatalysts were more photoactive than the titania-silica composite (25％ TiO〓).

在光催化降解苯酚中氧化钛修饰MCM-41的光催化活性虽然不及结晶的锐钛矿相纳米氧化钛，但是仍具有较高的催化活性；在光催化还原Cr到Cr反应中氧化钛修饰MCM-41的光催化还原性明显高于部分结晶的TiO〓-SiO〓（25wt％TiO〓）复合氧化物。

Two photo-chromatic organic materials for CD-R/CD-RW are found. One photochromatic organic material for Blue-light DVD-R/DVD-RW is found.

发现了两种适合CD-R／CD-RW的有机光致变色光盘材料和一种可用于红光和蓝光DVD-R／DVD-RW的有机光致变色光盘材料。

Photoperiodic counter is an important part of photoperiodic response. It accumulates and stores photoperiodic information contained in a sequence of light-dark cycles.

光周期计数器是光周期反应系统的一个重要组成部分，它累积和储存光周期循环中的光周期信息，当存贮的信息总量超过一个内部阈值时，诱导(滞育和非滞育；有性和无性)就会随之发生。

Root,immunoassay of ELISA(enzyme linked immunosorbent assay) was employed to determine IAA concentration in root tip, unilateral application of agar block containing IAA on root tip was carried out to investigate the effect of exogenous IAA on phototropic response.

为了研究生长素在水稻根负向光性反应中的作用，用含有IAA的琼脂块贴附在种子根的根尖表面观测IAA对根的生长效应，用ELISA法测定根尖的IAA含量，并对种子根弯曲部分进行半薄切片，结果表明：(1)种子根的生长方向既受光的调控也受外施的IAA的调控，根尖向贴有含IAA琼脂块的一侧弯曲生长；(2 )不定根在光照 1.5h后，背光侧的IAA含量明显大于向光侧；(3)种子根尖发生弯曲生长是伸长区的细胞不均等生长所致。

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。