Equium: Acoustic Heat Pumps

69 点作者 arsalanb超过 2 年前

1 comment

dang超过 2 年前

Comments moved to <a href="https://news.ycombinator.com/item?id=34233719" rel="nofollow">https://news.ycombinator.com/item?id=34233719</a>, which was posted earlier (and arguably gives more background).