Nine days after the fanfare, however, a leak in the cooling system put things on hold and they did not restart until last November, with a few gentle collisions between low-energy protons.
然而开启后的第九天，冷却系统的泄露却导致整个系统的停滞，直到去年11月才做了一些低能量质子之间的微弱碰撞。
The LHC's operating team believed that they may have the first low energy collisions by next week and higher energy's early next year.
LHC操作小组相信，他们到下周之前可以完成首次低能量碰撞，而明年年初则可以完成更高能量的碰撞。
The LHC's operating team believed that they may have the first low energy collisions by next week and higher energy's early next year.
LHC操作小组相信，他们到下周之前可以完成首次低能量碰撞，而明年年初则可以完成更高能量的碰撞。
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