白墨或白纸的泛黄现象 after-yellowing 埃系数 angstrom coefficient ..
基于8个网页-相关网页
after-yellowing of paper 纸张泛黄
The populations of bacteria gradually increased at the yellowing stage, and decreased after yellowing.
细菌数量则是在变黄期逐渐增加，烟叶变黄时达最大，以后逐渐减少。
youdao
应用推荐
模块上移
模块下移
不移动