The setting parameters of the three-roll bending plate internally -sup porting spiral welded pipe mill are critical for ensuring satisfactory and consistent quality of the welded pipe formation.
三辊弯板内承式螺旋焊管机组调型参数是保证焊管成型质量及其稳定性的一个重要因素。
Complicated formation condition and underground pipe network condition are the important factors that influence the quality of guided drilling of trenchless technology.
地层和地下管网条件复杂是影响非开挖导向钻进质量的重要因素。
The casing tectonic stress load defined by elastic solution is slightly less than the maximum pressure subjected by casing pipe in rheological formation.
用套管弹性解定义的套管地应力载荷，稍低于流变地层中套管所受最大压力。
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