To study the relation between the quantity of fecal bifidobacteria and erythrocyte immunological function diarrhoeal children. 目的研究腹泻小儿便中双歧杆菌含量变化与红细胞免疫的关系.
a pair of tongs一把夹剪She used tongs to put some more coal on the fire.她用火钳再夹一些煤放进炉子里.The waiter lifted rolls from a basket with a pair of silver tongs.侍者用一把银钳从篮子里夹起面包卷。...
任何载有多幅地图的地图集, 一般都附有一份地名索引.Any atlas , containing many pages of maps, normally includes an index, called a gazetteer.这个地图集是由我们公司出版的.It is brilliant to take an atlas for travelling.如果利用微缩胶片地图集, 那么很容易制作拷贝.If you use the atl...