When used in groups, the cylinders should be piped together, for stationarystorage or to form portable Banks.
成群使用时，钢瓶要用管道连接到一起作为固定储存库或形成移动储存库。
2
When used in groups, the cylinders should be piped together, for either stationarystorage or to form portable Banks.
成群使用时，钢瓶要用管道连接到一起作为固定储存库或形成移动储存库。
3
They could be potentially served as storage medium for optical information, stationary phase for gas chromatography and the materials modifying interface of the composites.