别再卖关子了. 告诉我发生了什么事.Stop playing me along. Tell me what happened.现在他们不会再卖咖啡或扇贝肉了吧.They won't be serving coffee now - or scallops.上次装运的货能再卖一批 吗 ?Can last shipment be duplicated?...
介绍了缩二脲在 工农业 上的应用及其合成工艺.In this article the application of biuret in industry & agriculture and its synthetic process are stated.自制的缩二脲产品与羟基丙烯酸树脂所配成的漆具有优良的性能.The paint compounded with the product and hydroxyl acrylic resi...