化石清洗、刷洗和涂清漆——所有这些许多化石猎人和博物馆馆长都采用的标准保护措施——极大地降低了恢复古代DNA 的机会。
Washing, brushing and varnishing fossils—all standard conservation treatments used by many fossil hunters and museum curators alike—vastly reduces the chances of recovering ancient DNA.
标准保护，标示为“受控”，保护信息以降低暴露的风险。
Standard safeguarding, labeled 'controlled,' protects information to reduce the risk of disclosure.
标准保护，标示为“受控”，保护信息以降低暴露的风险。
Standard safeguarding, labeled 'controlled,' protects information to reduce the risk of disclosure.
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