混合物处于足够的温度下且泡孔具有足够的泡孔尺寸,使得该片材的透光率大于或等于10%。
The mixture is at a sufficient temperature and the cells have a sufficient cell size such that the sheet has a light transmission of greater than or equal to 10%.
混合物处于足够的温度下且泡孔具有足够的泡孔尺寸,使得该片材的透光率大于或等于10%。
The mixture is at a sufficient temperature and the cells have a sufficient cell size such that the sheet has a light transmission of greater than or equal to 10%.
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