The Era of Open Source Gun(訳:オープンソース銃の時代) 3Dプリンタで作れるオープンソースな銃について http://www.thepowerbase.com/2013/05/the-era-of-the-open-source-gun/ …
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
The Era of Open Source Gun(訳:オープンソース銃の時代) 3Dプリンタで作れるオープンソースな銃について http://www.thepowerbase.com/2013/05/the-era-of-the-open-source-gun/ …