high activity短语¹⁰⁶¹⁰⁰⁺⁵ 基本例句 高活性 Efficacious catalyzer: Due to its large surface and high activity, nickel nanometer has good catalyzing effect, it is applicable to organic hydrogenation reaction, tail gas processing, etc. 高效催化剂。由于比表面巨大和高活性，纳米镍粉具有极强的催化效果，可用于有机物氢化反应、汽车尾气处理等。44wa