必要时应对计量校准装置进行调整或再调整，但应指定专人执行调整工作，以防

必要时应对计量校准装置进行调整或再调整，但应指定专人执行调整工作，以防止因调整不当导致装置失效。

結果 (英文) 1:

If necessary, measurement and calibration devices should be adjusted or re-adjusted, but should specify specially assigned to perform the adjustment, to prevent improper adjustments leading to device failure.

結果 (英文) 2:

When necessary to deal with measurement and calibration device is adjusted or re-adjusted, but the adjustment should designate a person to perform work to prevent device failure due to improper adjustment.

結果 (英文) 3:

Adjust or re adjust the metering calibration device if necessary, but assign special person to carry out adjustment work to prevent equipment failure due to improper adjustment.