我国首款自主知识产权电动飞机在沈阳交付 from 知识产权产业 | Podcast Episode on Podbay

知识产权产业

知识产权产业

知识产权之声

我国首款自主知识产权电动飞机在沈阳交付

2 minutes Posted Jun 21, 2015 at 2:00 am.

0:00

2:49

Share at current time

Show notes

← See all 10 episodes of 知识产权产业