That beams of light cannot be held stationary, and thus used as a form of memory store, is a big obstacle to doing this.
光束无法被固定在一点上被捕捉，这样只可以被用作为一种存储形式，而这也是很大的一个障碍。
2
Stationary tube or hydro tube modules store larger quantities of hydrogen at customer locations.
在用户处的固定管道组能够储存更大量的氢。
3
These parked vehicles have wireless device and high volume battery, and can easily participate in vehicular communications and serve as stationary routers to store and forward data packets.