兆威机电是国内微型传动及驱动系统领域的龙头企业，成立于2001年4月，于2020年12月在深圳证券交易所主板上市。
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A widespread bacterial defence system called SNIPE is shown to localize to the cell membrane, where it identifies and cleaves the DNA of infecting phage as it is injected into the bacterial cell.
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