To do that, CERN built the Antiproton Decelerator, which USES electric and magnetic fields to slow the particles from near light speed to about one-tenth of that, he said.

为了要做那些，CERN建造了反质子加速器，他说，使用电场和磁场把接近光速度的粒子减慢到光速的十分之一左右。

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To do that, CERN built the Antiproton Decelerator, which USES electric and magnetic fields to slow the particles from near light speed to about one-tenth of that, he said.

为了要做那些，CERN建造了反质子加速器，他说，使用电场和磁场把接近光速度的粒子减慢到光速的十分之一左右。

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