External Diameter Accuracy 外径精度
external diameter of the pipe 管子直径
Nominal External Diameter 标称外径
External diameter at top 桶口最大外径
external diameter of thread 螺纹外径
For the more,the article analyzed the influence factors about this equation,and shew that with the thickness and the external diameter of pretensioned spun concrete piles bigger,the errors are smaller.
本文还对预应力管桩混凝土回弹测强影响因素进行了进一步的分析,分析表明预应力管桩壁厚越厚、外径越大,回弹测强的平均相对误差越小,相对标准误差也越小。
参考来源 - 预应力管桩混凝土回弹测强研究·2,447,543篇论文数据，部分数据来源于NoteExpress
This paper defines the curve triangle and its internal diameter and external diameter.
定义了曲线三角形及曲线三角形的内径与外径，并给出了它的内径和外径公式。
Dissection the superficial branch of superior gluteal artery and measurement its external diameter;
解剖臀上动脉的肌皮穿支并测量其外径。
The external diameter of the middle part of each guiding expansion head is larger than that of the through pipe.
导向扩张头中部的外直径大于通管的外直径。
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