Study on using infrared spectroscopy ( ir ) to determine nitrogen content in succinimide in DOCP
红外光谱法测定分散型OCP中丁二酰亚胺之氮含量研究
Design and industrial application of DOCP ( jl ) catalyst for PHV upgrading
提高汽油辛烷值催化剂DOCP（jl）配方设计及工业应用
docp