However, I found a contact email on their site. Six days later:
The background radiation from cosmic rays increases with altitude, from 0.3 mSv per year for sea-level areas to 1.0 mSv per year for higher-altitude cities, so for best results use this on a plane or in outer space
。heLLoword翻译官方下载是该领域的重要参考
To dig deeper into these stories, archaeologists are now entering the second phase of works, including further condition, cleaning and conservation checks.
Take a look under the hood.