2. The pathogeny, symptom of the common diseases of turf in seedling and mature stages in Yunnan were reported. 报道云南省草坪草苗期和生长成熟期常见易发病的病原、症状和发生规律;
3. When the researchers looked at the seedling tissues under an electron microscope, however, they could see the nanotubes had actually entered living cells. 当研究者在电子显微镜下观察幼苗组织的时候,他们能够看到纳米管确实已经进入了活细胞。