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...
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...
One of the problem areas is lax security for airport personnel.问题之一是对机场员工的安检措施马虎松懈。There have been allegations from survivors that safety standards had been lax.生还者一直指责安全标准执行不严。a lax attitude to health and safety regulat...
He writes short stories with a touch of the supernatural.他写的短篇小说带有灵异色彩。a belief in the supernatural对超自然力量的相信UFOs are often explained as supernatural.不明飞行物常常被解释为超自然现象....