Listening Quiz: Kết Quả Thử Nghiệm Công Nghệ Phủ Sinh Học – Medium Level

1. What is the main topic of the conversation?
2. How did the coating perform against water and heat?
3. By how much is the drying time shorter?
4. Why does Emily say the shorter drying time will help speed up production?
5. What will the team do next?

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