The relation between DD density meter method and natural stacking method for determining filling value of cut stem was discussed .
对DD密度计法和自然堆积法两种测试膨胀梗丝填充值的方法进行了实验分析对比。
The relation between DD density meter method and natural stacking method for determining filling value of cut stem was discussed .
对DD密度计法和自然堆积法两种测试膨胀梗丝填充值的方法进行了实验分析对比。
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