A single - ring benzoxazine was synthesized by solvent - free method.用无溶剂法合成了一种单环苯并嗪.Curing shrinkage, temperature and curing enthalpy of benzoxazine based on diphenyl oxide resin were investigated.研究了苯并口恶嗪二苯醚树脂固化时的体积收缩率...
最后我在钢琴旁的阴暗角落里发现了它。Finally I spotted it, in a dark corner over by the piano.房间里阴暗、清冷,静悄悄的。The room was dim and cool and quiet.我们百无聊赖地坐在阴暗的候机大厅里。We sat about in the gloomy airport lounge....
Dal í uses logging to implement atomicity and durability of transactions.DALI使用日志实现原子性和持久性.He disclosed the GEM Listing, delisting and other transactions, asas the rules will be introduced.他透露,创业板上市 、 交易以及退市等有关规则将陆续出台.Th...
A post office was set on fire and vehicles were stoned by looters.抢劫犯放火烧了一家邮局,并用石头砸车。They were told to shoot looters on sight.他们奉令见到打劫者立即射击.Looters will be shot on sight.打劫者格杀勿论....
当这些聚体达到一定体积时,内部的细胞变成木质化.When the aggregates reached a certain size the inner cells became lignified.木质化足以使细胞变硬和增强.This lignification serves to stiffen and strengthen the cells.细胞壁多发生木质化而次生加厚.The cell wall has undergone s...