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For many of you, you're going to find it dense material.
对大多数人，你将会有很多繁重的读书材料。
youdao
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Small diameter, very dense rolls, Safe and efficient material handling.
卷径小，卷绕密实，货物搬运安全、高效。
youdao
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Small diameter, very dense rolls, Safe and efficient material handling.
卷径小，卷绕密实，货物搬运安全、高效。
youdao