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文章分析了抽油机井井口防喷盒与光杆不对中的主要原因,介绍了该装置的结构原理及安装使用方法。该装置具有结构简单,安装方便,对中程度高等特点。
The article analyzes the main reason why the well head of the pumping unit is not aligned with the polished rod, and introduces the principle of the structure and the installation method. The device has the advantages of simple structure, convenient installation and high degree of centering.