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Notice: error_log(): write of 114 bytes failed with errno=28 No space left on device in /www/wwwroot/seo-dashuju-wenxue/code/logginfo/SimpleLogger.php on line 199 “NEC”是“National Electrical Code”的缩写,意思是“国家电气规范”-学术与科学类英文缩写翻译大全
The controllers are listed by Underwriters Laboratories and meet or exceed National Electrical Code(NEC) requirements. 这类控制装置都通过美国UL认证,满足或优于美国全国电气规程的相关要求。
Caution! Electrical requirements : all electrical systems for indirect heating and monitoring for a flammable gas supply system should be designed to comply with the applicable national or local electrical code requirements. 警告!有关电的要求:应该按照可适用的国家或地方的电力法规的要求来设计用于间接加热和易燃气体供应系统的监测的所有电力系统。