4、What are the reasons for the failure of many meters when checking the mechanical temperature compensation meter?
时间：2019-12-25 01:15:53热度： 分享到：
A. The temperature compensation meter has higher requirements for the detected ambient temperature. If the detected temperature does not meet the standard, the data will be different.
B. There may be problems with the equipment of the metrology institute.
C. There is a difference.
D. No constant temperature or insufficient constant temperature time.
