Cholesterol abundant in the nature and simple aromatic derivative can be made into gel precursor just through simple synthesis.
从自然界含量丰富的胆固醇和简单芳香衍生物出发，经过简单的合成即可得到凝胶的前体。
2
The aromatic oil is a mysterious present from nature.
芳香油是一种神秘礼物性质。
3
The polycyclic aromatic sulfur heterocycles (PASH) in the environment is characteristic as the stable nature, not easy to be degraded, strong toxic and potential danger.