针对测量仪器校准间隔的优化问题，分析了历史校准数据的特征，建立了等维新息马尔可夫GM（1，1）预测模型。
To optimize the calibration interval of a measuring instrument, a prediction method based on the renewal GM(1,1) model is put forward.
维护，修理和校准千分表，固定计，高度计和其他测量设备等精密测量仪器。
Maintain, repair and calibrate precision measuring instruments such as dial indicators, fixed gauges, height gauges and other measuring devices.
氙灯试验箱是采用氙弧灯光源的气候老化试验设备，国内还没有相应的校准规范及合适的测量仪器。
Xenon weatherometer is a weathering test equipment with xenon arc lamp, but there are not calibration Specifications and measuring instruments in domestic.
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