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针对球罐焊缝检测劳动强度大且危险性高等缺点，将数控技术与电机驱动原理相结合，研制成球罐焊缝检测自动爬行器，可以大大提高工作效率，保证检测质量。
Aiming at the shortcoming of large weld strength and high danger in the test of the spherical tank welds, the automatic creeper for the test of the spherical tank weld is developed by combining the numerical control technology and the motor driving principle, which can greatly improve the working efficiency and ensure the inspection quality.