linear polyester造句

例句与造句

1. "' Polyhydroxyalkanoates "'or "'PHA "'s are linear polyesters produced in nature by bacterial fermentation of sugar or lipids.
2. Macrocyclic lactones ( cyclopentadecanolide, 15-pentadec-11 / 12-enolide ) have odors similar to macrocyclic ketones of animal origin ( muscone, civetone ), but they can be prepared more easily, for example, by depolymerization of the corresponding linear polyesters.
3. It's difficult to find linear polyester in a sentence. 用linear polyester造句挺难的