大脑需要持续供氧。The brain requires a constant supply of oxygen.氧气泡a bubble of oxygen医院中抗甲氧西林金黄色葡萄球菌感染病例不断增长的发生率rising rates of MRSA infections in hospitals...
28唯有体验了艰苦的境遇,才会有精进奋发的心.Only after encounters with hardships will one be roused to vigorous diligence.梅花以它的高洁 、 坚强 、 谦虚的品格, 给人立志奋发的激励.Plum its noble, strong, humble character, determined to work hard give incentives....
Hexamethylene diisocyanate ( HMDI ) may be used in prepolymer, in place of TDI.六亚甲基二异氰酸酯 ( HMDI ) 可用在预聚物中代替甲苯二异氰酸酯〔TDI〕.Polyurethane elastomers based on glycols ( PEA, PPG PTMG ) , diisocyanate ( TDI ) and chain extender...