In order to maintain the credibility of checking and calibration of the measurement standard equipment, period checking should be carried out.

为了保持计量标准设备检定、校准状态的良好可信度，应该实施期间核查。

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In order to maintain the credibility of checking and calibration of the measurement standard equipment, period checking should be carried out.

为了保持计量标准设备检定、校准状态的良好可信度，应该实施期间核查。

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