结合9801型脱砷剂的应用过程及实际生产运行数据,介绍了9801型丙烯脱砷剂在我厂丙烯精制中首次工业应用的效果. The first industrial application of 9801 propylene de - arsenic catalyst in Harbin Petrochemical Company was described.
Common sense, or intuition, or selfevident truths derives from man's perceptions of the world about him.常识, 或直觉, 或显然的事实,来源于人们对周围世界的感觉.These truths were by no means self-evident when Galileo first suggested them.伽里略首...
They neglect their duty at the least hint of fun elsewhere.别处哪怕发生一丁点儿乐事，他们便会忘记自己的职责。I glanced at her and saw no hint of irony on her face.我瞥了她一眼，没有在她的脸上看到一丝嘲弄。I'd dropped a hint about having an exhibition of his wor...