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...
神经学: 研究有关神经系统功能或障碍的医学专科.Neurology: Medical specialty concerned with nervous system function and disorders.__轻松解决问题,对可能出现的任何问题或障碍都能直接解决.Problems easily solved. Immediate solutions - to any question or - _ - snag thatmight...
分裂不定式的用法现在已被广泛接受.The use of the split infinitive is now generally acceptable.情态动词通常用不带to的不定式.Modal verbs generally take the bare infinitive.英语中,不定式往往与 " to " 字连用.In English an infinitive is often used with the word " to ...
小农场主陷于无效率的境况中,只为生存下去而苦苦挣扎.The small family farm is steeped in inefficiently and struggles just to survive.再就是急诊室却被作为日常非卧床护理既不方便也无效率.Hospital emergency rooms are inconvenient and inefficient sources for routine ambulatory...