The source was an eye witness, an Iraqi chemical engineer who supervised one of these facilities.
透露这一消息的是一位亲眼见过这些生产设施的伊拉克化学工程师,他负责管理其中的一处设施.
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DCS have become one of mostly research object by petrol-chemical control engineer.
因此,DCS成为 从事石油化工过程控制专业技术人员的主要研究对象之一.
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