self-sealing

Currently, this science is used in packaging, by extending shelf life ( preservatives can be released into the food), improving product safety ( by alerting consumers to spoiled food), and even repairing torn packaging through some sort of self-sealing process.

目前，这门技术使用的包装，通过延长保质期（防腐剂可放到食品里），提高产品的安全性（提醒消费者变质的食品），甚至通过某些自动封口的方式修复撕裂的包装。

Scanning electron microscope photographs indicate that vitreous material of the self-sealing layer fills in cracks of the coating, resulting in blocking off the passage of oxygen efficiently.

通过扫描电镜观察到自愈合层的玻璃态物质进入涂层裂纹中，有效地填充裂纹并阻挡氧的通过。

The double-cone sealing is one of the semi-self-sealing construction which is widely used in high-pressure vessel.

双锥密封是高压容器广泛采用的一种 半 自紧结构形式,其螺栓联接设计合理与否,直接影响到密封结构的性能、使用寿命与效益.