胍基固载量的提高可以增加吸附剂对胆红素的吸附性能.The increase of the guanidine amount can improve the adsorption performance.对于α-氨基仍采用Fmoc保护策略, 侧链氨基用二碳酸二叔丁酯引入叔丁氧羰基来保护,侧链胍基用酸敏感保护基2,2, 4,6,7-五甲基二氢苯并呋喃-5-磺酰基来保护.Fmoc, Boc and Pbf were used respecti...
luscious silks and velvets柔软光滑的丝绸和天鹅绒A series of knitting technologies are introduced in regard to plain, striped and fancy elastic velvets.文中介绍了平纹弹力丝绒 、 条纹弹力丝绒和花式弹力丝绒的编织工艺.Silks and satins, scarlets and velvets, put out...
He was too out of condition to clamber over the top.他体质太差，爬不到山顶。Sailor as he was, it was easy enough for him to clamber up the gnarled trunk.他虽说是个水手,攀上这扭曲的树干, 倒还容易.Teenage boys clamber down mine shafts 30 to 50 meters de...