这表明：该技术尽管仍处于萌芽阶段，但确是可行的。
This proved that the technology, although still at an early stage, was viable.
尽管使用链表人工管理内存是可行的，但那不是一件非常容易的工作。
Although manual memory management with linked lists is possible, it is not a very friendly task.
与此同时，我觉得使用预付费的SIM卡来上网该是可行的，尽管其设计初衷是用于手机通话。
In the meantime I feel it should be possible to use prepaid SIM CARDS — designed primarily for voice as connections — for data.
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