Lock objects 锁对象
objects lock
对象锁
以上为机器翻译结果，长、整句建议使用 人工翻译 。
At first you wonder why, and then it is explained that the telescope must swivel as it tracks objects on the sky, and that means the instrument has also to rotate if it wants to keep a lock on those same galaxies.
BBC: Super-chilled robot ready to slice and dice
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