·2,447,543篇论文数据，部分数据来源于NoteExpress
Use PC and TLC to identifying the dyes of the Sheaffer Black Ink and the standard Parker Pure Black Ink, which composed from two dyes: Brilliant Black BN CI.
用纸色谱法和薄层色谱法鉴别犀飞利黑墨水和标准派克纯黑墨水中的两种染料均为：亮黑CI。
youdao
应用推荐
模块上移
模块下移
不移动