... 绿白色或天蓝色钙质泉华 zeyringite 齐格勒过程 Ziegler process 齐格勒-纳塔催化剂 Ziegler-Natta catalyst ...
双语例句
1
A low density polyethylene produced by a low pressure process, by Ziegler-Natta polymerization or by use of the Phillips process.
采用低压过程，齐格勒·纳塔聚合或菲利浦斯公司工艺生产的一种低密度聚乙烯。
2
Also provided is a process for narrowing the molecular weight distribution of a polyolefin comprising contacting an olefin, a Ziegler-Natta catalyst and a compound specified herein.