Application research of anti - coking coating technology in ethylene unit 涂层技术在乙烯裂解装置抗结焦中的应用
2.
Standard test methods for rubber - determination of ethylene units in ethylene - propylene copolymers and in ethylene - propylene - diene terpolymers by infrared spectrometry 红外线光谱法测定乙丙橡胶和三元乙丙橡胶中乙烯单体的标准试验方法