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我们采用新技术对传统测长仪作了换代设计,推出了新一代JDY-4型万能测长仪。提高了万能测长仪的精度、自动化程度和测量效率。示值误差为:
We use the new technology for the traditional length measuring instrument was replaced by the design, launched a new generation of JDY-4-type universal length measuring instrument. Improve the accuracy, automation and measurement efficiency of the universal length measuring instrument. Indication error is: