Protected, high-temperature, hall-effect latch with active pull-down.

保护，高温，霍尔效应闩锁与有源下拉。

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Methyls, small chemical groups within cells, latch on to certain areas along the DNA strand. The methyls serve as a kind of switch that renders genes active or inactive.

甲基，细胞内小的化学基团，定位于DNA链上一定区域，像开关一样，掌管着基因的活化和关闭。

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