2. A gasbag (shake-proof bag) can
enwrap goods according to their shape and size.
气囊式包装袋可以根据物品的形状和大小来制作相适应的包装。
3. Shaped steel/steel profile concrete beam. Its characteristic is to
enwrap a layer of concrete outside of the structural steel beam.
聚丙烯纤维混凝土柔性喷层是软岩巷道支护中一种新型的喷层形式。