Objective To investigate the therapeutical effect of uvula - preserving uvulopalatopharyngoplasty ( UPPP ).目的观察保留悬 壅 垂腭咽成形术的临床效果.If this is the tongue, then that must be the uvula.如果这是舌头, 那么那个一定是小舌头.Objective To explore ...
非离子型表面活性剂有聚氧乙烯缩合物糖酯和烷基胺氧化物.Nonionics include polyoxyethylene condensates, sucrose esters and alkyl amine oxides.非离子型表面活性剂有聚氧乙烯缩合物, 糖酯和烷基胺氧化物.Nonionic surface - active agents include polyoxyethylene condensates, sucrose e...
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...