查询词典 chemically

Corrosion kinetics were measured gravimetrically,and corrosion product scales were physically examined and chemically analyzed.

测定涂盐的 Fe-Cr合金于 O_2-0.1、0.5和1.0%(SO_2+SO_3)气氛中在560～750℃温度区间腐蚀动力学曲线，并对腐蚀产物进行物理观察和化学分析。

Hot corrosion behavior of Na2SO_4 coated B-1900 alloy was studied in air at 827 and 750℃.Corrosion kinetics of the coated alloy was gravimetrically measured,and contents of water soluble ions in the reaction products were chemically analyzed.X-ray diffraction and EMP techniques were employed to determine the components and morphology of the corrosion product scale.

用涂 Na_2SO_4盐膜法研究高温合金 B-1900在827℃和750℃于空气中的热腐蚀行为，测定其腐蚀动力学曲线，用 X -射线衍射和电子探针元素面扫描方法分析腐蚀产物的相组成和成份，还对其中的水溶性离子进行化学定量分析。

A drug,C14H19NO2,chemically related to amphetamine,that acts as a mild stimulant of the central nervous system and is used especially in the form of its hydrochloride for the treatment of narcolepsy in adults and hyperkinetic disorders in children.

哌醋甲酯一种药，C14H19NO2，与苯丙胺有化学上的联系，用作中枢神经系统弱兴奋剂，尤其以其氢氯化物形式来治疗成人的发作性睡眠病和儿童的运动功能亢进失调

Chemically modified electrodes, Indoles acetic acid, Epinephrine, Uric acid

化学修饰电极；吲哚乙酸；肾上腺素；尿酸

PCNA were detected in 36 cases of patients immunohisto - chemically, and the major were in median intensitive and quantitive.

PCNA则在36例中有阳性表达，且多数呈中等强度数量，统计分析表明，各组间PCNA染色分级无差异。

Focusing on this objective, the main study of this dissertation proposes the feedwater heating combined cycle for repowering the conventional coal-fired steam power plants, the chemically intercooling thermodynamic cycle and the solar thermal power system with the integration of methanol fuel.

本论文围绕新的热力循环及其能量转化利用机理的若干核心科学问题，开展研究、提出用于传统火电站更新改造的给水加热型联合循环、化学间冷热力循环和太阳能与甲醇互补型的能源动力系统。

Chemically, fluoroquinlones are an amphoterics molecule processing major ionizable groups, a basic piperazine amine and acidic carboxyl. The form of drugs was greatly affected by the acidity in aqueous solution. Thus the effect of pH values in aqueous solution on the fluorescent properties of fluoroquinolones was studied in details, the spectral properties of each form was characterized. It was found that the fluoroquinolones exhibit weak fluorescence in strong basic solution.

氟喹诺酮类药物分子结构中既有羧基，又有哌嗪氨基，它们所处环境的pH值对其存在型体有很大影响，因此我们详细研究了水溶液的pH值对该类药物光谱特性的影响，并对于各型体光谱特征进行归属，发现强碱性溶液中其发光较弱。

The hybrid composite PW11Co/PAMAM was characterized by FT-IR, UV-Vis diffuse reflectance spectra, XPS, XRD and TG/DTA, indicating that the PW11Co was chemically anchored to PAMAM. The morphologies of the title composite were characterized by scanning electron microscopy and transmission electron microscopy. The catalytic activity was evaluated by oxidation of isobutyraldehyde to isobutyric acid in MeCN under mild conditions (20 ℃, ambient pressure), showing that the title compound is a more effective and recoverable catalyst than corresponding PW11Co.

通过FT-IR、DR-UV-Vis、XRD、TEM、SEM、TG/DTA等手段对其进行了表征，并考察了其对异丁醛转化异丁酸的催化活性，实验结果表明，多金属氧酸盐通过配位键与聚酰胺-胺作用形成的无机-有机复合物可望成为一种催化活性高且易于分离和重复使用的多相催化剂。

A study of Chemically Induced Dynamic Poiarization spectra is made, using a highly time resolved ESR, of photolized anthracenequinone radicals to determine the influence of surfactant micelles on the spin polarization of anthracenequinone anion. It is found that the CIDEP mechanism of photolization is mainly the radical pair mechanism of anthracenesemiquinone radical and of ethylene glycol ketyl R〓〓 or R〓 radical whose center is carbon in anthracenequinone/ethylene glycol system, but there is a certain amount of triplet state mechanism polarization.

分别研究了胶束和微乳液的&笼效应&对蒽醌和苯醌的光解CIDEP的影响，其结果如下：(1)对于蒽醌的CIDEP，在乙二醇溶剂中，极化的蒽醌自由基AQ〓和R〓自由基通过光解经过夺氢反应产生，其CIDEP机理主要是自由基对机理，但也包含了一部分三重态机理。

II. The State practices the special-purpose control system with respect to the production, management, use and export of ephedrine (including extracts from ephedra grass and chemically synthesized, laevorotatory and dextrotatory) as well as their saline categories such as ephedrine hydrochloride, ephedrine oxalic, ephedrine sulphate and raw products of ephedrine (including ephedrine extracts, ephedrine extract powder and ephedra powder), ephedrine derivatives and prescribed preparations made with ephedrine as the raw material.

二、国家对麻黄素(含从麻黄草提取和化学合成的，包括左、右旋)及其盐类如盐酸麻黄素、草酸麻黄素、硫酸麻黄素和麻黄素粗品(含麻黄浸膏、麻黄浸膏粉、麻黄草粉)、麻黄素衍生物以及以麻黄素为原料生产的单方制剂等的生产、经营、使用、出口实行专项管理制度。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。