tunnel junction solar cell 隧道结太阳能电池
Are cell phones to blame for cubital tunnel syndrome?
手机是肘管综合征的元凶么？
Prisoners' belongings were strewn about, but appeared heaped in the cell with the tunnel in an effort to obscure the entrance.
囚犯的个人物品到处都是，但隐约能看到地道的入口轮廓。
One unexplained question was why the cells where prisoners were supposed to sleep were left open so that they could make their way to the cell with the tunnel.
整件事情有一个疑点无法解决，就是为什么犯人睡觉的囚室没有上锁，这让他们能够潜入挖有地道的囚室。
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