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对长度万能量具的使用维护进行介绍,对其使用前、使用中和使用后的数据测量进行标准规范,最终保障万能量具的使用效果。
The introduction of the use and maintenance of the omnipotent measuring instruments, the standardization of data measurement before, during and after use and finally the use of the omnipotent measuring instruments are guaranteed.