补芯（Buxing），是一个英译名词，国内一般叫六角内外丝螺纹接头，一般由六角棒切割锻打后加工而成，使用的螺纹类型有很多种，它是连接两段口径不一样管道的内外螺纹管件的，在管道连接中有不可代替的作用。
本实用新型是一种在钻井过程中使用的方补芯，属钻井设备的器具。
The utility model relates to a square complement core for a well drilling process, which belongs to an appliance of a well drilling device.
本实用新型是一种在钻井过程中测量转盘扭矩的方补芯，属于钻井设备的器具。
The utility model relates to a square bushing for measuring the torsion of a rotary table in the process of drilling Wells, which belongs to an appliance of well drilling equipment.
依据这种技术，可以基本判断缺陷是否适合采用填芯法补强及更好地制定补强的方案。
Then whether the filling core method is fit is known, and the reinforcement scheme can be made better.
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