实验和分析结论提高了全面认识套管接头力学性能的水平，而且对从理论上进一步深入研究提供了可靠的数据。
The cognitive level is raised by results of experiment and analysis for mechanical properties of casing connection, and the useful data are provided for the further research in theory.
在实验中，大套管实验工况的火焰稳定性比小套管要好。
In this experiment, the flame stability under large bushing is better than under small bushing.
利用理论分析和实验模拟的方法研究了超声脉冲反射技术测量井下套管厚度的方法。
The Methodological investigation on the measurement of thickness of downhole casing with ultrasonic pulse echo technique is carried out both in theory and in experiments.
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