Various references have showed that satisfied technology series have not been created although there have been a number of research methods of hydrocarbon accumulation coefficient.
国内外大量调研资料表明，研究油气聚集系数的方法虽然有多种，但是尚没有形成令人满意的技术系列。
2
The model is applied to predict the propylene yield in the course of the thermal cracking of hydrocarbon, satisfied result is obtained.