constrained geometry catalysts造句

例句与造句

1. The world's polyethylene and polypropylene are produced via both heterogeneously via Ziegler-Natta catalysis and homogeneously, e . g ., via constrained geometry catalysts.
2. His ground-breaking discovery of constrained geometry catalysts ( see Constrained geometry complex ), single-site catalysts for olefin polymerization, today accounts for the production of over 2 billion pounds of polymers per year.
3. It's difficult to find constrained geometry catalysts in a sentence. 用constrained geometry catalysts造句挺难的