Melamine is an organic base chemical most commonly found in the form of white crystals rich in nitrogen

三聚氰胺是一种有机质的化学物质，最常见于含氮丰富的白色晶体。

youdao

Melamine is an organic base chemical most commonly found in the form of white crystals rich in nitrogen

三聚氰胺是一种有机质的化学物质，最常见于含氮丰富的白色晶体。

youdao