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高产率的英文

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"高产率"怎么读用"高产率"造句

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  • high yield

例句与用法

  • A variety of aldehydes were converted into acylals in good yields with anhydride in the presence of a catalytic amount of zinc bromide under solvent - free conditions
    以醛和酸酐为原料,溴化锌为催化剂,无溶剂条件下高产率地合成了偕二酸酯(其中醛与苯甲酸酐的反应是首次报道) 。
  • It is a bench - top preparative hplc solution on helping laboratories purifies compounds for clinical trials prior to full - scale production
    高产率放大系统可以藉由非线性超载,将制备能力放到最大;它是一桌上型高压制备层析设备,主要协助实验室纯化临床试验或是生产所需的成分。
  • A variety of aldehydes were converted into acylals in good yields with anhydride in the presence of a catalytic amount of zinc bromide under solvent - free conditions
    摘要以醛和酸酐为原料,溴化锌为催化剂,无溶剂条件下高产率地合成了偕二酸酯(其中醛与苯甲酸酐的反应是首次报道) 。
  • Moreover , with relatively longer folding time intervals , the step - addition scheme provided higher activity recovery , while the fed - batch scheme was advantageous in terms of productivity
    此外,由于间歇式较馈料式提供更充足的摺叠时间间隔,故可获得较高的活性回收率,而馈料式则具有高产率之优点。
  • In this paper , the preparation and the purification of the carbon nanotubes was investigated . using the co catalysts produced by chemical co - deposition , the carbon nanotubes were synthesized by the catalytic chemical vapor decomposition method
    采用催化剂裂解化学气相沉积的方法,用化学共沉淀法制备的co催化剂,高产率的制备了多壁碳纳米管。
  • However , the limitation of large - scale production and the high cost have restrained the development of the research on their application . comparing to arc discharge and laser ablation , chemical vapor deposition ( cvd ) is the most possible method with large - scale , low - cost and high - yield advantage to fabricate swnts
    相对电弧法与激光蒸发法,化学气相沉积法( cvd )是最有望实现大批量、低成本、高产率制备swnts的方法,因此已成为其制备方法研究领域的热点。
  • Abstract : polyphenylacetylenes were synthesized by rn ( nbd ) cl 2 and wcl6 / ph4sn catalyst systems in n2 at room temperature . polymers with high yield and high molecular weight were obtained . their structures were characterized by uv , ir , nmr and gpc , respectively . the fluorescence of the polymer solution with different concentration was investigated using variable excitation wavelength from uv to visible region . the relation between fluorescence and polymer structure was studied . the results showed that the molecular chain structure has great influence on fluorescence of the polymers . the emitting peak wavelength of fluorescence for the polymer of high stereoregularity is independent of solution concentration and excitation wavelength . the emitting peak wavelength of fluorescence for the polymer with disordered molecular chain arrangement varies with changing the solution concentration and excitation wavelength , and different emission sites in molecular chains and low emitting yield are shown . the measurement and analysis of fluorescence spectroscopy of polyphenylacetylenes may provide some useful information to judge the molecular chain arrangement in some conjugated polymers
    文摘:使用有机金属铑、金属钨/四苯基锡催化剂体系聚合苯乙炔,分别获得了高产率和高分子量的聚苯乙炔.使用uv , ir , nmr , gpc等分别对聚合物结构进行了表征.采用不同波长的激发光对聚合物荧光性能进行研究,详细分析了聚合物结构与荧光性能之间的关系.研究结果发现,不同聚合物结构对聚合物荧光性能产生很大影响,规整性高的聚合物,将有较高的发光量子效率;聚合物规整性差,将可能导致多个荧光发光结构点,其荧光强度降低.聚合物荧光光谱研究将对某些共轭聚合物结构的规整性分析提供一些有用的信息
  • Electrochemical syntheses method and hydrothermal syntheses processing are the important two methods of ssp . comparing other methods for preparing functional thin films , these methods have some advantages over conventional thin films processings such as low energy consumption , high yield and one step formation of the thin films etc . so these methods may have great potential to application in this thesis
    电化学技术和水热合成技术是两种重要的软溶液工艺技术,相比常用的薄膜制备技术而言,这两种薄膜制备技术具有低能耗、高产率、一步成膜等优点,因而具有巨大的应用推广潜力。
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