The main component in 4 # solvent is liquefied butane.四 号 溶剂主要成分为液化丁烷.Butane and butylenes has the same characteristic with propane and propylene.丁烯与丁烷表现出与丙烯、丙烷相似的特性.The butane conversion of catalyst aged in different pH...
Butane and butylenes has the same characteristic with propane and propylene.丁烯与丁烷表现出与丙烯、丙烷相似的特性....replaceable butane gas cartridges.可替换丁烷气贮气瓶The butane conversion of catalyst aged in different pH has similar value.在不同pH...
There was a busy , disputatious about it, instead of the accustomed phlegm and drowsy tranquility.他们都带着一种忙碌、慌乱, 好争论的神气,一点也不象往日那样心平气和并且保持着昏沉沉的宁静.Daily consume toaway heat, detoxifying purging lung and dissolving phlegm.心得...
She treats him as if he were the fount of all knowledge .她把他当成无所不晓。The old man is a fount of wisdom.这位老人有无穷的智慧.To the young boy his father was the fount of all knowledge.对于这个小男孩儿来说，他的父亲就是所有知识的源泉。A sacred fount of untold ...