It is caused by insulation failure, and is a serious shock hazard.
它是由绝缘失败，是一个严重的触电危险。
The insulation failure seriously affects the economic and safe operation of cryostats.
绝热失效严重影响了低温容器的经济和安全运行。
NOTE 2 Failure of basic insulation is not considered likely to occur in normal use.
注2：不考虑在正常使用中可能发生的基本绝缘失效。
NOTE 2 Failure of basic insulation is not considered likely to occur in normal use.
注2：不考虑在正常使用中可能发生的基本绝缘失效。
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