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valence
效价
The relative valence ofthe optimum fermentation liquid on Candida albicans achieved 21111.5u/ml and23195.6u/ml, which was increased by 23.2% and 27.6% compared with the original. 应用二剂量法测定 9912-7-2U 和 9912-2U-32N 抗生素的相对效价,分别为 21111.5u/ml 和 23195.6u/ml,较原始发酵培养基和发酵条件(17136.6u/ml 和 18172.4u/ml)分别提高了 23.2%和 27.6%。 短句来源 “valence”译为未确定词的双语例句
Synthesis and Structure of [Et_4N]_2[Mo_6O_(19)H_4] and Valence Determination of Molybdenum Synthesis and Structure of ［Et＿4N］＿2［Mo＿6O＿（19）H＿4］and Valence Determination of Molybdenum 短句来源 The synthesis of new phenylfluorone reagents and studies on their properties Ⅱ The studies on color reaction of new phenylfluorone reagents with high valence metals 新取代苯基荧光酮试剂的合成及其性质的研究Ⅱ．新型取代苯基荧光酮与金属离子显色反应的研究 短句来源 The Development of the Study on Low Valence Zirconium Compounds 低价锆化合物的研究进展 短句来源 A Remarkable Synergic Effect of Metal Phthalocyanine and High Valence Metal Salt or Oxide in the Selective Oxidation of Ethylbenzene 金属酞菁与高价金属盐或氧化物在乙苯液相催化氧化反应中的协同效应 短句来源 The coordination bond between phosphine ligands and Rh atom and the valence state of the surface Rh is made clear before and after the CO/H2 adsorbed on the PPh3-Rh/SiO2. The adsorption state of CO, H2 and C2H4 on PPh3-Rh/SiO2 was observed. 发现PPh_3-Rh/SiO_2催化剂上配体PPh_3和表面Rh原子存在配位作用。 考察了CO、H_2和C_2H_4在PPh_3-Rh/SiO_2上吸附及作用状态。 短句来源 更多 
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Studies on exposure status of inhabitants to water-arsenic valence states in areas with endemic arsenism in the Datong basin in
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This study aimed to describe the distribution of water-arsenic (As) valence states and its relationship to areas with endemic arsenism in the Datong basin.
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The most common type of drinking water arsenic valence state was As(III) in the endemic disease-areas.
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This led us to conclude that the fraction of each water-arsenic valence state should be studied when determining the arsenic content of drinking water.
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The valence of atoms was determined by X-ray photoelectron spectroscopy.
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This paper proposes the synthetical conditions transferring 99.94 percent of methacrylic acid (by weight) into β-hydroxypropyl methacrylate with salt, consisted of high valence transitional metal ions, (NH_4)_2CrO_4 and hydroquinone as catalysts, promotors and free radical polymerization inhibitors, respectively. Chemical and physical identifications show that the main quality indices of this technique and the purity of the final product are comparable to those reported in the literature of advanced c... 本文提出了以一种廉价的过渡金属高价盐/(NH_4)_2CrO_4/HO?OH为催化剂/助催化剂/阻聚剂系统,使甲基丙烯酸99.94%(按重量计)转变成轻丙酯的合成实验条件,其主要合成工艺技术指标以及最终产品的纯度相当于70年代后期国际文献上报导的水平,而较国内83年报导的结果佳.通过理化测试,其结果论证了上述观点. 文摘来源 HMO Calculation and XPS Studies on 3-ethyl-5-(3-ethyl-2(3H)-benzothiazlydine) -ethylidene)-2-thioxo-4-thiazolidene (BTER) were reported in this paper. Both HMO calcu- lated charge density and XPS experimental results showed that there is the charge transfer be- tween intermolecular donor and acceptor groups. The amount (p) of charge transfer calculated using XPS relative peak areas in the molecule is～0.52c / mole conaistent with the HMO calcu- lated amount (p)～0.46e / mole of charge transfer on oxygen atom ... 本文对3-乙基-5-[2-(3-乙基-2-苯并亚噻唑啉基)亚乙基]罗丹宁分子(简写为BTER)进行了HMO计算和XPS研究,HMO计算的电荷密度和XPS实验结果表明分子内的施受电荷转移效应;用XPS相对峰面积求算其电荷转移量(ρ)为～0.52e/mole,体现在分子中氧原子上的HMO计算电荷转移量(ρ)为0,46e/mole;同时,HMO计算的最高占有轨道能(5.39eV)与XPS价带谱具最低结合能峰相应的结合能(5.4eV)相近,表明BTER的功函数较小。 文摘来源 The electrochemical behavior of FeTPP and CoTPP and their interaction with oxygen were studied in DMSO solution with an attempt to look into the mechanism of electrocatalysis by these metalloporphyrins toward cathodic reduction of O_2 in aprotic media. An optically transparent thin layer cell was used for in-situ spectroelectrochemical measurements. By Obtaining the absorption spectra of the metalloporphyrins at different potentials in deoxygenated solution and then following the spectra changes while the s... 本文用光透薄层电解池测定四苯基卟啉铁(FeTPP)和四苯基卟啉钴(CoTPP),在二甲亚矾(DMSO)及二氯乙烷(EtCl_2)溶液中与O_2作用时的原位光谱。实验表明在DMSO中Fe(Ⅱ)TPP可同O_2作用;在EtCl_2中Co(Ⅱ)TPP和Co(Ⅰ)TPP都可和O_2作用,但在DMSO中仅能观察到Co(Ⅰ)TPP同O_2作用。 文摘来源 << 更多相关文摘 
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