请问”白底白，灰白”用英文怎么讲？

白底白，灰白翻译为：Bai Debai, grayish white
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白底白的意思是: White bottom white

灰白的意思是: Grey

但如果是:
双面涂布白板纸: Two-sided coating whiteboard paper

单面涂布白板纸: The one side coating whiteboard paper

双面涂布白板纸: two sides coated manila
单面涂布白板纸: one side coated manila