层与层之间用纸板隔开用英语怎么说

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Separate the layers with cardboard.
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======以下答案可供参考======
供参考答案1:
layers are separated by cardboard
供参考答案2:
use the cardboard to separate layer between layer
供参考答案3:
Separated from the middle of cardboard to avoid the product because of friction were scratches.