用光

The research results also pointed out that the complex compound of iodine and amylum is not stable, and has a regular fadding process; the concentration of phosphate buffer solution has a serious inffluence on the fadding effect of the extractive solution of plant leaves.

取一定部位的功能叶，用打孔器取40个叶圆片，研磨加水后离心制得植物材料提取液，取一定量上清液加到3ml含有碘、叠氮化钠和淀粉试剂的反应混合液中，30秒后测定1分钟内吸光值的变化量。

Presently there are two types of instrument to detect the polarization of electron beam,one is Mott polarimetry,and another is optical electron polarimetry.

文章首先阐述了光学极化度测量仪的理论基础和实验原理，然后介绍了所研制的光学极化度测量仪的设计方案和物理结构，最后给出了用该光学极化度测量仪测量弱光的Stokes参数的结果

Based on the optical activity of the complex formed by mannitol and ammonium molybdate,the mannitolum level in the gastrointestinal dialysis salt was determined with polarimetry.

本文根据甘露醇与钼酸铵的络合物具有旋光性这一特点，用旋光法测定胃肠透析盐中甘露醇的含量。

A new structure of polarized light interference interleaver is presented.

提出了一种偏振光干涉型光交错复用器的新结构。

laser technique ; polarized light ; wave plate ; phase retardation

由于实验过程中有各种因素，如光源的起伏，光电探测器的动态范围、本底电流等，对用测量光强来确定波片的延迟量无疑会直接

The technology of wet process was simple, which had practical applications in the polarizer of displays.

该法工艺简单，作为显示器偏振片用防眩光材料具有实际的应用价值。

When you have used up the polish, let's try this new kind.

你用完那种擦光油后，我们来试试这种新的吧。

They are always in liquid form and they spread easily by hand or with a polisher.

他们通常是液态，不论是用手还是抛光机都很容易上。

Shenyang Research Institute of Chemical Industry, Shenyang 110021, China Abstract: Spectrophotometric analysis showed that the peak absorbance for food dye of Allura Red and biological dye of Ponceau-G occurred at 501 and 510 nm. In sunlight after 2, 4, 6, 8, 10 hours, the decomposition rates of Allura Red and Ponceau G were between 2.4 to 5.8% and 3.4 to 10.8%, so they are stable in sunlight. The recovery rates on cottons and glasses were very high, so they are easily recoveried from targets. Further studies showed that the recovery rates of two dyes on the leaves of wheat, cabbage, cucumber and tomato were different, so it need previously determine the recovery rate of tracer on the target crop to adjust the result. Field experiment showed it was easy to measure the pesticide spray distribution of high volume spay and low volume spray to use Allura Red and Ponceau-G as tracers.

沈阳化工研究院，沈阳 110021 摘要：光谱分析表明，食品染色剂诱惑红和生物染色剂丽春红-G的最大吸收波长分别为501 nm和510 nm ；在连续2、4、6、8、10 h阳光照射下，分解率分别在2.4%~5.8%和3.4%~10.8%之间，见光稳定性良好；两种染色剂在棉花叶片和玻璃片上的洗脱回收率都很高，说明易于从靶标上洗脱下来；进一步测定表明，两种染色剂在小麦、甘蓝、黄瓜、番茄叶片上的洗脱回收率各不相同，所以对准备进行测试的作物应先做一次洗脱回收率试验，用以校正测试结果；田间应用表明，用两种染色剂做示踪剂，可以方便地测定常量喷雾和低容量喷雾过程中农药在麦田的沉积分布情况。

The relation between the output phase differences and the losses of 2×2 and 3×3 optical fiber couplers with rotatory symmetry is deduced in this study, which is based on the characteristics of scattering matrix and Hermite positive definite quadratic form of the couplers.

前 言光纤耦合器用于诸如光纤干涉系统、光纤环、波分复用器件和光纤通信中的分集接收等场合时，除了要求适当的输出功率比以外，尚需考虑输出端光场间的相位关系［1～3］。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。