In 1877, he created a machine with two needles: one for recording and one for playback.

1877年时，他创造了一个内附两只唱针的机器：一只用来记录，而另一只用来播放。

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Conclusions Percutaneous intracystic steroid injection using two needles for solitary bone cysts in children is simple, safe and effective.

结论经皮双针囊腔内注射类固醇适合于小儿孤立性骨囊肿，简单，安全，治愈率高。

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Two more needles were discovered, including one found by a federal air marshal.

CNN: STORY HIGHLIGHTS

Two of the needles were found by passengers, she said, at which point Delta told all 18 flights from Amsterdam to stop serving the sandwiches.

CNN: STORY HIGHLIGHTS

And needles were even sometimes used as weapons, usually thrown at their victims, although two inch-long needles called fukibari were carried in the mouths of ninjas and spat into enemies' faces.

FORBES: No. 13 The Needle