The modification of rare earth elements to palladium catalysts leaded to great promotion on both the activity and stability in selective gas hydrogenation of acrylonitrile to propionitrile.
稀土元素对钯催化剂的修饰能够极大地促进丙烯腈选择性气相加氢制丙腈的活性和稳定性。
As a sensitive film SAW gas sensor testing of gas in the central part of its sensitivity, stability, selective, performance of the sensor important factors.
敏感膜作为SAW气体传感器测试气体的核心部分，其灵敏度、稳定性、选择性等是影响传感器性能的重要因素。
The method of parallel motion of response curve for lead ion-selective electrode in lead buffers is given to determine the stability constant of Pb-NTA complex in ethanol-water solvent.
本文提出了金属缓冲溶液中离子选择电极响应曲线平移法测定配合物的稳定常数。
As the most important constituent of chemical sensor, chemical selective membrane directly affects chemical sensor selectivity, stability, repeating and responsive time, etc.
化学选择膜作为化学传感器中最为重要的组成部分，直接影响到化学传感器的选择性、稳定性、重现性及响应时间等性能指标。
By the experiment of genetics stability, it showed that genetic variation of the strain had already taken place. It was the highest strain of the tylosin of selective breeding after space mutagenesis.
结合菌株传代稳定性试验，说明该菌株已发生了遗传性变异，是经太空诱变后所选育的泰乐菌素高产菌株。
We effectively improve the MMT thermal stability of solid acid catalyst and the shape-selective catalysis by transforming the two-dimensional layered structure to the three-dimensional pore structure.
有效地提高了蒙脱土固体酸催化剂的热稳定性；通过从二维层状结构到三维孔道结构转变，切实提高了材料自身择形催化的特性。
We effectively improve the MMT thermal stability of solid acid catalyst and the shape-selective catalysis by transforming the two-dimensional layered structure to the three-dimensional pore structure.
有效地提高了蒙脱土固体酸催化剂的热稳定性；通过从二维层状结构到三维孔道结构转变，切实提高了材料自身择形催化的特性。
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