1. In this paper we introduced the developments in dentrite studies mainly including two fields: dentrite morphology and dentritic growth theory.
   本文主要介绍了枝晶研究的发展现状,主要包括枝晶形貌研究和生长理论研究两个方面。
2. Porosity can be caused by gases coming out of solution during cooling and becoming trapped between dentrite arms as tiny voids.
   在冷却过程中，溶液中的气体逸出造成多孔性，或被截留在晶体枝杈之间形成微小气孔。

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