Therefore, water vapor permeability of flexible packaging material (or barrier) of the test of testing more and more important in the packaging.
因此,对软包装材料透气透湿性(或阻隔性)的测试研究在包装测试中越来越重要。
The results show that rigid material has a better effect than flexible one in isolating vibration, so the former should be selected as barrier material in engineering.
研究表明,刚性材料比柔性材料具有更好的隔振效果,在隔振设计时应选择刚性屏障材料;
The results show that rigid material has a better effect than flexible one in isolating vibration, so the former should be selected as barrier material in engineering.
研究表明,刚性材料比柔性材料具有更好的隔振效果,在隔振设计时应选择刚性屏障材料;
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