Catalysts may be gaseous, liquid, or solid; they may be inorganic compounds, organic compounds, or complex combinations.

气态、液态和固态的催化剂可能是无机化合物、有机化合物，或是复杂的化合物。

youdao

Using doped method in inorganic luminescence materials, lanthanide chelates have been put into complex matrix. Rare earth ion concentration is lowered and new kind of rare earth compounds are gotten.

类似无机荧光材料中掺杂办法，将稀土荧光络合物掺入络合物基质中，降低稀土浓度，得到新型稀土络合物发光材料。

youdao