packaging structure的用法和样例：
例句
- An overall view of the normal encapsulation structure is provided in the following table.
下表讲全面展示一个一般性的文件包装结构。 - Generally speaking, the test of barrier property and sealability is essential in evaluating barrier property of package materials and package structures.
一般而言，测试的阻隔性和密封性是必不可少的评价阻隔性的包装材料和包装结构。
