SIT: An air conditioning unit for rooms containing essential electrical equipment was found degraded due to inadequate maintenance and testing practices.
安装有（安全）重要设备的厂房空调因维修和试验不充分被发现（功能）降级。
The Substation Electrical Testing Coach(EST-C1) is used for high voltage electrical equipment in substation or feeder station's preventive test and project's handing over test.
C1变电站电气试验车适用于电力变电站及电气化铁路牵引变电所的电力设备的工程交接试验及预防性试验。
RAM is used widely in electrical equipment, so RAM testing is a key part for built-in test and functional test.
随机存储器在电子装备中广泛使用，对其进行有效测试是电子装备自测试与生产功能测试的主要内容。
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