a flexible bedding course is formed through superimposing any two or more of space cotton, non-woven fabrics, a cotton felt, memory sponge, a coir mat and a plastic net;
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sponge out a memory 抹除记忆
memory sponge
记忆海绵
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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