on the other hand, the method does not exist, so vacuum steps not to worry about quality aluminized layer is affected, you can study from material on both sides of the oxygen transmission rate.

• 另一方面，该方法不存在抽真空步骤，因此不必担心镀铝层的质量受到影响，可以从材料的两侧考察氧气透过率。