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elliptic spot
相关语句
  椭圆光斑
     It is found by simulation analysis that the elliptic spot affects detector performance in linearity, sensitivity and dynamic range of the detector.
     模拟分析给出了椭圆光斑在线性度、灵敏度和动态范围等方面对探测性能带来的影响。
短句来源
  椭圆光斑的
     Off-axis Micro-displacement Measurement Based on Elliptic Spot
     基于椭圆光斑的离轴微位移计量
短句来源
     An optical micro-displacement measurement method based on elliptic spot and off-axis principle is proposed.
     提出一种基于离轴法并采用椭圆光斑的光学微位移计量手段。
短句来源
  相似匹配句对
     Spot crude
     现货原油
短句来源
     On"on the Spot" of the Robbery
     论抢劫罪中的“当场”
短句来源
     ELLIPTIC REVOLUTION
     椭圆旋转
短句来源
     Off-axis Micro-displacement Measurement Based on Elliptic Spot
     基于椭圆光斑的离轴微位移计量
短句来源
     ELLIPTIC CURVE CRYPTOSYSTEMS
     椭圆曲线密码体制
短句来源
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The crystals of swainsonine were isolated from Rhizoctonia leguminicola by means of extraction between H 2O∶CH 2Cl 2 and a 732 type cation exchang resin for the first time in China.It discoverd that the purple elliptic spots are displayed in thin layer chromatography (TCL) between semifinished product solution of donse abstracts of R.dleguminicola and standardized sample of swainsonine dyed with Ehrlichs reagent and all the volumes of R f are 0.81.The study with gas chromatography (GC) discovers...

The crystals of swainsonine were isolated from Rhizoctonia leguminicola by means of extraction between H 2O∶CH 2Cl 2 and a 732 type cation exchang resin for the first time in China.It discoverd that the purple elliptic spots are displayed in thin layer chromatography (TCL) between semifinished product solution of donse abstracts of R.dleguminicola and standardized sample of swainsonine dyed with Ehrlichs reagent and all the volumes of R f are 0.81.The study with gas chromatography (GC) discovers that the same peaks type appear in pure abstract sample (15.942 0 mg/L) and standardized sample of swainsonine under the same conditions,and therefore it is clear that the pure crystals isolated from R.leguminicola is pure swainsonine.The studies show that dry mycelium of Rhizoctonia leguminicola contains 1.23%-2.99% swainsonine,which has opened a new way to obtain swainsonine.

采用H2O∶CH2Cl2萃取、732型阳离子树脂交换等方法,从豆类丝核菌中分离到纯结晶,经薄板层析法发现,豆类丝核菌提取物浓缩的粗品液和苦马豆素标准品经Ehrlich's试剂显色后,二者均出现一椭圆形紫色斑点,且Rf值均为0.81;气相色谱法研究发现,提取物纯品标样(15.9420mg/L)与苦马豆素标准品在同一色谱条件下显示出完全一致的峰形,证明从豆类丝核菌中分离到的纯结晶是苦马豆素纯品。研究还表明豆类丝核菌干燥菌丝体中苦马豆素含量达1.23%~2.99%.

An optical micro-displacement measurement method based on elliptic spot and off-axis principle is proposed. It is found by simulation analysis that the elliptic spot affects detector performance in linearity, sensitivity and dynamic range of the detector. Applied circular gratings are fabricated in laser direct writer according to this metrology principle, and furthermore, it shows the laser diode may replace traditional He-Ne laser and the spot correction is not necessary.

提出一种基于离轴法并采用椭圆光斑的光学微位移计量手段。模拟分析给出了椭圆光斑在线性度、灵敏度和动态范围等方面对探测性能带来的影响。基于这一微位移计量原理,在激光直写设备上制作了具有实用价值的圆光栅,这也表明半导体激光器可以取代传统的氦氖激光器并无需光斑整形。

 
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