hafnium

hafnium的英语例句

1. The field emission properties of hafnium coated carbon nanotubes ( CNTs ) were investigated.

   研究了表面沉积铪膜并进行后处理对碳 纳米管 膜场电子发射性能的影响.

2. This activator is acyl amine - the hafnium activator that ether is a foundation.

   该催化剂为酰胺 - 醚为基础的铪催化剂.

3. And how is it known that Mars had hafnium - 187 ?

   那么是如何知道火星有铪 -187 的 呢 ?