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1)  ratio of expanding diameter
扩径率
1.
In this paper, the experiments of comeback and comeback holding pipe have been performed, then the SME characteristic values of Fe-Mn-Si-Cr SMA sleeve in the case of different ratio of expanding diameter have been tested and analyzed.
本文通过回复实验和回复抱管实验测试了不同扩径率条件下 ,Fe Mn Si Cr形状记忆合金管接头形状记忆效应的特征参数。
2)  hole enlargement ratio
井径扩大率
1.
The prediction technology of hole enlargement ratio in the condition of underbalanced drilling;
欠平衡钻井条件下的井径扩大率预测技术
3)  expanding [英][iks'pændiŋ]  [美][ɪk'spændɪŋ]
扩径
1.
Effect of friction on deforming condition during tube expanding process;
管材扩径时摩擦对变形状态的影响
2.
The method of Prediction for the spring back of cylinders in mechanical expanding;
筒形零件在机械扩径过程中的回弹预测方法
4)  diameter extension
扩径
1.
The practice of deep well diameter extension and washing, blasting is introduced in this paper.
介绍深水井中的扩径与洗井爆破工艺 ,并就如何保证爆效、加工和密封装药容器及容器在高水压下是否发生屈曲失稳的验算等进行了叙述。
2.
Based on such analysis,some criteria and methods have been proposed for judging the situation of honeycomb,segregation,reducing,diameter extension,breaking zone and sedimentation on the bed of pile,etc.
分析了常见桩身缺陷产生的原因以及反射波波形和参数的特点,提出了基桩存在蜂窝、离析、扩径、缩径、断裂以及桩底沉渣等情况的判断依据和方法。
5)  hole enlargement
扩径
1.
Qinghai Electric Power Transmission and Distribution Corporation undertakes the II section of 750kV Ma\'nasi-north of Urumchi transmission line engineering,and construction technics of hole enlargement conductor paying off has been adopted.
青海送变电公司承担着750 kV玛纳斯—乌鲁木齐北输电线路工程的Ⅱ标段,在施工中采用了扩径导线展放施工工艺。
6)  reducing and expanding duct
缩径与扩径
补充资料:径率
1.直率。
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