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介绍了一种能测量焊头的偏移和倾斜量的仪器，阐述了仪器的原理和结构，描述了其使用方法。使用该仪器能有效地监控焊缝的外观质量。
An instrument capable of measuring the offset and tilt of a welding horn is introduced. The principle and structure of the instrument are described and its application is described. The use of the instrument can effectively monitor the appearance of weld quality.