约 2,450,000 个结果
在新选项卡中打开链接
Urea - Wikipedia
Urea | NH2CONH2 | CID 1176 - PubChem
Urea | Definition, Formula, Production, Uses, & Facts | Britannica
The Molecular Structure and Properties of Urea - ChemicalBook
Urea Formula – Structure, Properties, Uses, Sample Questions
Urea - NIST Chemistry WebBook
Urea (CH₄N₂O) – Definition, Structure, Preparation, Properties, …
Urea - NIST Chemistry WebBook
Urea - CH4N2O Structure, Properties, and Uses - BYJU'S
Urea Formula - Chemical and Structural Formula of Urea …