Whether it would be the last one up the engineers’ sleeves, as the single-atom limit looms, remains to be seen.

不过它是不是工程师的最后的王牌，就像单原子极限织机（此处有疑问，不知怎么翻译，请指教），还有待考察。

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The drilling unit is made of a very strong structure containing the single drilling spindles which run in perfectly ground bronze cylinders (sleeves).

钻头单元由一个强有力的包含单一钻锭的结构组成，钻定运行在完美的青铜圆柱（袖套）面上。

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