凤凰彩票
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1、透气度试验装置：由电器控制部分、气体计量管以及试样夹具三部分组成。气体计量管分100ml、300ml、500ml三档。
2、试样夹具：
分圆柱形试样夹具和圆环形试样夹具。两种试样夹具都保证气体只能从试样孔隙通过而不致从试样边缘泄漏。
