Post navigation Lyophilizers 网络 冷冻乾燥机; 冷冻干燥机; [例句]In order to minimize oil vapor migration, some lyophilizers are designed with a tortuous path between the vacuum pump and chamber. 为了最小化油蒸汽的回流，一些冻干机在真空泵和前箱间设计了弯曲的管路。 acetylene 英[əˈsetəliːn] 美[əˈsetəliːn] n. 乙炔; 电石气; [例句]The gang worked for up to ten hours with acetylene torches to open the vault. 那伙匪徒为打开金库用氧乙炔炬干了长达10个小时。
