查询词典 radical function

The method was sensitive and has been applied to the determination of trace perchlorate radical in water samples and sodium chlorate with satisfactory results.

方法用于水样及氯酸钠中痕量高氯酸根的测定，结果令人满意。

The side-chain liquid crystal polymacrylate was synthesized by free radical polymerization form the acrylate monomer which was generated from p-hydroxy benzoic acid, ethylene chlorohydrin and acrylic acid by etherification, esterification and chloration.

以对羟基苯甲酸、氯乙醇和丙烯酸为主要原料，经醚化、酯化和酰氯化反应合成了中间体和含液晶基元的丙烯酸酯单体，后者经自由基聚合合成了聚丙烯酸酯侧链液晶聚合物。

Methods We studied 12 cases of cholelithiasis after radical gastrectomy for cancer.

我们对术后发生了胆囊结石的12例病例进行了分析。

Objective To analyse the characteristics of cholelithiasis after radical gastrectomy and the possible causes.

目的 回顾分析胃癌根治术后并发胆石症的病例特征，并探讨其可能形成机制。

In Britain it took a radical campaign led by Emmeline Pankhurst and her daughters Christabel and Sylvia to achieve votes for women.

潘克赫斯特和她的两个女儿克丽丝塔贝尔及西尔维亚领导的、为妇女争取选取权的激进式示威游行。

For the optical system with circular apertures,it is difficult to get the boundary radical slope of phase and the accurate sampling value in the circular domain boundary when the intensity transport equation is used to recover the original phase.

1引言相位恢复是指利用光束传播时所探测到的光强信息反演出相位[1]，为了获得更多的光强信息以把相位恢复到最佳，一次光强测量是不够的，因此这就要求在光学系统的输出或成像光轴方向上进行多次光强测量。

The phase of optical wave can be recovered by the intensity transport equation under the paraxial approximation For the optical system with diffraction limit, it is difficult to get the boundary radical slope of phase and sample in the circular domain boundary when using the intensity transport equation to recover the phase, consequently, we reviewed an algorithm mentioned in the reference ［4］, namely, the equation, computation domain and boundary condition are changed, then the phase is reconstructed by the multigrid method and corrected at last Moreover, the experiment system is set to testify the algorithm, and the recovered phase from the intensity data detected by CCD is compared with the result from phase retrieval algorithm, it is found that the phase reconstruction error can reach 017 λ in the case of non-uniform intensity distribution, as a result, the method is suitable for the phase recovery with low wavefront sensing accuracy.

在傍轴近似条件下，可以利用光强传播方程对畸变波前进行相位恢复。对于衍射受限的光学系统，很难获得相位的边界径向斜率值作为边界条件，此外，要获得精确的圆域边界采样值也并非易事。为了克服上述困难，进一步研究了相位恢复改进方法，即改变了方程的表示形式、计算区域和边界条件，并用多重网格法进行求解获得重构相位，最后再将其修正。为了验证算法的精确性，搭建了实验系统对算法进行实验验证，将由CCD探测的光强分布进行计算得到的相位分布与相位恢复算法的结果进行比较，证明在光强分布非均匀的情况下，该方法恢复的相位均方根误差能够达到017 λ，可以适用于波前传感精度要求不是很高的相位恢复。标签自适应光学相位恢复相位修正光强传播方程 adaptive optics phase retrieval phase correction intensity transport equation

The assay of DPPH free radical clean test best is Cissus pteroclada, it has over 95%, in anti-liver lipid peroxidation assay, the best is Ampelopsis cantoniensis, it has over 95% too, and Ampelopsis Japonica has well effect on killing human breast cancer cells MCF-7 but have no effect about anti-oxidation.

抗肝脂质过氧化试验中以广东山葡萄最好，其抑制率有95%以上。白蘝对於抗氧化虽然无特别效用，但在人类乳癌细胞株MCF-7毒杀试验上有很好的成效其抑制细胞生长率为95%以上。

Supervising all this is a far more informal network of radical Islamists who facilitate contacts clandestinely from Europe to the Middle East, North Africa and Pakistan.

在这一切的幕后，是一个非常不正规的由激进的伊斯兰教徒网络，这个网络便利了欧洲与中东、北非和巴基斯坦间的秘密接触。

Part of the radical concept of the new Clio were many components made of unusual materials to save in weight and repair costs.

对新概念的一部分，克里欧激进的组成部分作出了许多不寻常的材料，重量和节省维修费用。

The role of the environment is very important.

的作用，环境是非常重要的。

At that time, the High Court of England and Wales Court of Queen's Bench president of William Murray, Lord Mansfield in June 22, 1772 ruling:"No matter then there is the inconvenience, but there must be a decision, I can not say that this case under the law in England are permitted or authorized; are so black should be released."

当时的英格兰及威尔士高等法院王座法庭院长William Murray， Lord Mansfield于1772年6月22日宣判：「无论有那麽不便，但总要有个决定，我不能说这件案在英格兰法律之下是准许或认可；所以黑人是应该被释放。