Open lamp circuit protection: latch-off within 1 second.

输出开灯线路保护：1秒钟内自动保护；

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You left the latch off the gate and the dog escaped.

你没插门闩，狗跑了。

《柯林斯英汉双解大词典》

As part of their natural defenses against viral infection, human cells have proteins that latch onto dsRNA, setting off a cascade of reactions that prevents the virus from replicating itself.

作为对病毒感染自然防御的部分，人类细胞的蛋白质会锁住dsRNA，引发级联反应，以阻止病毒的自我复制。

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But Jelavic was not to be denied with his next attempt, the striker brushing off the challenge of Mulgrew to latch on to Weiss's quickly taken free-kick and sliding a shot past Forster, the ball rebounding off the right-hand post but spinning back over the line.

BBC: Celtic 1-2 Rangers (aet)