The third logic value (the middle value) can be used as a fault indicating signal, or in off-line testing.
其第三个逻辑值(中间逻辑值)用作故障指示信号，或在脱机测试时应用。
The first homemade heat protector modulation and testing production line were introduced briefly. The fault of hydraulic system during the test process were analyzed and worked out.
简要介绍了首条国产热保护器调节、检测生产线液压系统，分析了调试过程中液压系统故障现象及排除方法。
Measure principle and system composition, maintenance and fault treatment of a laser on-line gas analyzer in testing were presented.
文章主要介绍了其使用的国产化集散控制系统、气体分析仪以及窑筒体扫描仪的结构、原理、性能及应用情况。
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