英语语法分析

Trinuclear carbonyl cluster compounds of Fe, Ru and Os were vaporized, ionized and dissociated by pulsed laser beam.

在自制的仪器上以脉冲激光溅射铁、钌、锇的三核羰基原子簇化合物，由原位质谱观察和分析溅射产生的正负离子。

The developing history of PNP from mononuclear to dinuclear and trinuclear was introduced, and influences of PNP structure on the stability, activity and selectivity of the catalyst were emphasized.

重点介绍了PNP由单核向双核、三核的开发进程，并讨论了其结构对催化剂稳定性、活性和选择性的影响。