1·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.
该模型应用于烃类热裂解丙烯产率的预测，取得了满意的效果。