氡的释放和运移规律及机制研究是氡气测量的基础理论问题，它与氡在地球科学、环境科学等领域的广泛应用密切相关。

The study of radon release and migration is the basic theoretical issue for radon measurement, which has close relationship with extensive applications in geoscience, environmental science and so on.

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当天下午的会议还讨论了「纵观科学—-地球环境安全界线」、冰川融化及海洋酸化等重要议题，并商讨解决方案。

Today's meetings also discussed a number of issues including Planetary Boundaries, Zeroing in and Acidifying Oceans. Possible solutions were brought up for discussion.

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地球观察研究所，一个将科学带入大众生活的国际性非赢利组织，它关注地球的环境及未来，发起了此次探险活动。

Earthwatch Institute, an international nonprofit organization that brings science to life for people concerned about Earth's environment and future, sponsored this adventure.

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