precursor effect

The effect of precursor on crystalline phase and sizes of TiO_2 particles and the transformation temperatures of the TiO_2 particles were studied by using thermal gravimetric and differential thermal ( TG-DTA), X-ray diffraction ( XRD) and scanning electron microscopy ( SEM) measurements.

采用热重-差热、X射线衍射、扫描电子显微镜等分析方法，研究了前驱物的组成对所得颗粒的形貌、粒径和分散程度的影响规律以及TiO2颗粒的晶相转变温度。

Silencing effect of amyloid precursor protein triggered by small interfering RNA

小干扰RNA对人淀粉样前体蛋白基因的沉默作用

Effect of hydrogen donor and precursor of donor on catalytic hydro-cracking reaction of residue oil

供氢剂及其前身物在渣油加氢裂化中的作用

Effect of High Temperature Treatment on Properties of Sol Film for Polyimide Precursor

高温热处理对聚酰亚胺前驱体凝胶膜性能的影响

War usually became a precursor of social change. World War II took such an effect to the Great Briton.

战争往往成为巨大社会变革的先导，第二次世界大战对于英国就起了这样的作用。