Polystyrene - supported N - benzyl - N - alkyl - aminopyridine was prepared through chloromethylated polystyrene treated with 4 - aminopyridine and alkylation agents.本文以聚苯乙烯氯球为原料,通过与 4- 氨基吡啶及烷基化试剂反应,制成聚苯乙烯支载N - 烷基-N-苄基氨基...
他们把她与不同的男人扯上关系，包括大亨唐纳德·特朗普。They've linked her with various men, including magnate Donald Trump.比加特·唐纳德，这家驻格拉斯哥的营销代理公司已赢得了两个爱丁堡的客户。Biggart Donald, the Glasgow-based marketing agency, has won two Edinburgh accounts.唐纳...
Each generation surpasses the preceding one.一代更比一代强.Thus continuous coiler unwinds the wire from immediately preceding block to give a dead cast coil.这样连续缠卷装置能展开刚刚从前一鼓轮处获得的金属线,并将其固定缠绕.Repeat the exercises described in th...
This last consignment of hosiery is quite up to standard.这批新到的针织品完全符合规格.Referring to my conversation with you today, I now enclose an order sheet for hosiery as specified.参照今日和你方的谈判记录, 兹随函寄上详细叙述订购卫生衣的订单2份,请查收.Tables were...