三亚湾珊瑚礁可以分为5个微相：生物骨架岩、生物屑、礁岩屑、珊瑚碎块、强烈改造的生物屑。
The coral reefs in Sanyawan can be divided into 5 microfacies: organic framework reef, bioclast, reef debris, coral detritus, and the strongly reformed bioclast.
本文叙述了用PTFE废弃边角屑料经辐射裂解，超微气流粉碎制备PTFE超细粉的工艺过程与应用范围。
This paper describes the preparation of ultrafine PTFE powder from the waste leftover bits and pieces of PTFE by radiation splitting and superfine airflow, as well as the application of the powder.
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