日期：
来源：雅诚德英语网
As an important chemical material, 1, 3-propanediol (1, 3-pd) has numerous promising properties and applications.
丙二醇(1,3 - PD)是一种重要的化工原料，具有许多优良特性和很好的应用前景。
As an important chemical material, 1, 3-propanediol (1, 3-pd) has numerous promising properties and applications.
丙二醇(1,3 - PD)是一种重要的化工原料，具有许多优良特性和很好的应用前景。