简述了抽油机曲柄致人死亡事故的经过，详细分析了事故发生的原因，提出了整改的措施。
This paper introduces the process of people death accident caused by crank of pumping unit, analyzes the causes in detail, and offers the improvement measures.
这些文件详细载明了事故的所调查实践事件中的姓名、日期、地点和全部经过。
These document are detailed with names, dates, places and full descriptions of the incidents investigated.
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