It shows that the fractures of drill-stem subs are ascribed to outside diameter and the irrational bend strength between inside and outside threads.
通过分析计算认为,钻柱转换接头断裂原因与外径不符合标准及内、外螺纹接头弯曲强度比不合理有关。
参考来源 - 塔里木油田钻柱转换接头失效原因分析及预防·2,447,543篇论文数据，部分数据来源于NoteExpress
The outside diameter has also been trimmed.
外面的直径也被削减。
Drag onto the page. Drag yellow diamonds to resize hub circle, root circle, and outside diameter.
拖到绘图页上。拖动黄色菱形可调整中心圆、齿根圆和外径的大小。
Then the Outside Diameter of the blade is again measured very exactly, to determine Diameter Loss.
再次精确测量刀片的外径长度，以测定外径的降低。
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