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This paper deals with the effect of Cd(superscript 2+) on the chlorophyll content, the activity of SOD, CAT, POD and ultrastructure in leaves of Hydrocharis dubia.

研究分析了不同浓度Cd(上标 2+)对水鳖叶片叶绿素含量、SOD、CAT、POD活性以及超微结构的影响。

In acidic aquatic environment, hydrotalcite and its calcined product can also play a role in neutralizing H(superscript +) ions and sorbing anions.

在酸性环境下，水滑石及其焙烧产物在对阴离子的吸附过程中都有中和酸性溶液的作用。

Objective To evaluate the clinical values of localizing of hyperfunctional parathyroid glands using 99Tc-MTBI double-phase imaging and 99Tc-MIBI/99TcO(superscript - subscript 4) imaging.

目的 评价99Tc-MIBI双时相显像及99Tc-MIBI/99TcO(上标-下标 4)联合显像对探测功能亢进甲状旁腺组织的临床应用价值，并与其他影像学手段进行比较。

Theoretical studies on various geometrical structures of Hypophosphorous acid were carried out using DFT theoretical methods, at the B3LYP/6-311 ++ G(superscript **) level. Intramolecular proton transfer isomerization has also been studied using the intrinsic reaction coordinate.

采用量子化学密度泛函B3LYP方法，在6-311++G基组水平上全优化得到了硫代次磷酸的硫酮式和硫醇式两种构型异构体以及相应的对映异构体，同时对分子内质子转移异构化反应微观机理进行了理论分析。

The recombinant immunotoxin BDI-PE38 was expressed mainly in soluble form and can be purified by Ni(superscript 2+)-NTA agarose.

在基因工程的实践中，包含体的形成是人们利用大肠杆菌表达外源蛋白的一大难题。

AIM To study the effect of divaricoside on intracellular free calcium concentration [Ca(superscript 2+] in guinea pig ventricular myocytes in order to investigate the mechanism of its positive inotropic effect.

目的 观察羊角拗苷对豚鼠心室肌细胞内游离钙离子[Ca(上标 2+]浓度的影响，以探讨Div正性肌力作用的机制。

Superscript n) series pseudo-random multi-frequency signal is one of the effective inspiriting fountainheads in geophysical surveying.

2系列伪随机多频信号是一种较为有效的地球物理激励场源。

The results show that the complex [Ru2](superscript 2+) intercalates into the DNA base pair via the intercalative ligand.

结果与结论所合成的配合物结构得到确证，该配合物与DNA之间通过插入作用结合。

The ore minerals consist mainly of pitchblende UO(superscript x, x=2.16~2.70. The pitchblende is mainly intergrown intimately with diagenetic minerals, parts of which is intergrown with authigenic kaolinite, while another parts of which is intergrown or juxtaposed with pyrite of ore-stage, indicating simultaneous precipitation.

镜下观察结果显示，铀矿物主要为沥青铀矿UO(下标 x， x=2.16~2.70，部分与自生高岭石共生，部分则紧密地与矿化阶段黄铁矿共生或交互生长，表明同时沉淀。

The anteroposterior projectionof the foot, utilized to examine the foot disease in the past was referred as to the freely-stressed method. However, most of the patients on suspicion of Hallux Valgus get pains while standing with weight-bearing. Additionally, the patients' real conditions can not be diagnosed without standing. it is helpful for us to apply both the foot weight-bearing and the foot non weight-bearing so as to probe the individual difference between the HVA and the IMA 1(superscript * intermetatarsal angle and further to provide the informative resources concerning the assessment of performing surgery operation. The study include 40 patients who we having Hallux Valgus of different degree, The findings have revealed the significant difference among 40 patients after the method-weight-bearing AP of the foot projection given.

过去一般常用诊断足部疾病的足部摄影(anteroposterior projection of the foot； AP projection of the foot)是指未施加压於病人足部的拍摄方法，然而多大脚趾外翻的病患常於站负重时感觉疼痛舒服，而未负重摄影却无法呈现出病人站时的真实态，因此我们用足部前后位负重摄影(weight-bearing AP projection of the foot)与足部未负重摄影(non weight-bearing AP projection of the foot)的影像比较其大脚趾外翻角(Hallux valgus angle， HVA)及第一跖骨间的角1(上标 st intermetatarsal angle， IMA的差，进而提供外科手术的估评。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。