结果正规的防护操作污染轻；
Results Normal defensive operations caused little pollution.
早先有分析指出，尼安德特人的DNA在实验室操作时完全被现代人基因所污染了，这一点令帕博博士及其同事都倍感尴尬。
Indeed, Dr. Pääbo and his colleagues were publicly embarrassed when an earlier analysis of Neanderthal DNA turned out to be thoroughly contaminated by modern human genes from lab workers.
DPA的意思是；岸上的指定人员。他的职责是代表船东负责防污染，安全操作方面的事务。
DPA stands for Designated person (s) Ashore. His responsibility includes monitoring safety, pollution prevention aspects on behalf of the shipowner.
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