He emptied a few overflowing ashtrays.他将几只满满的烟灰缸倒干净。In coastal villages these shells are commonly seen being used as ashtrays for cheroots and cigars.在沿海的村子里,经常可以看到这些贝壳被用做雪茄的烟灰缸.His office was a disaster area of papers a...
羧基和糖胶联在一起,接在分子末端.The carboxylic acid is conjugated with a glycine and bangs off the end of the molecule.综述了褐藻糖胶结构方面的研究进展,以及褐藻糖胶的抗凝血活性和抗病毒活性与结构之间的关系.The structure of fucoidan and the relationship between structure and ant...