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〕.Hexamethylene diisocyanate ( HMDI ) may be used in prepolymer, in place of TDI.柯达叙述了一种直链的活性亚甲基两当量的黄成色剂.Kodak company describes open chain reactive methylene two - equivalent yello...
A wave of superstitious fear spread among the townspeople...盲目的恐惧感在市民中蔓延。'I get very superstitious about things like that,' she said by way of explanation.“在那种事儿上我会很迷信，”她解释道。Jean was extremely superstitious and...
物质和意识形态上的障碍在东欧已不复存在。Physical and ideological barriers had come down in Eastern Europe.我意识到我不得不克服语言障碍。I realized I had to surmount the language barrier.人质的获释可能会为发动战争扫清障碍。The hostage release could clear the decks for war....