2. Techniques used for modification are referred to as data
stuffing because they involve inserting extra bits or bytes.

用于调制的技术被称作为数据填充,因为包含了插入的额外数据位或字节。
3. Make sure you use an empty box (no
stuffing, yet) and really really make sure the box is totally sealed and the gasket is sealing well.

确定您使用一个空的箱子(没有充塞)并且真正地真正地确定箱子完全被密封并且垫圈密封得很好。