WebJun 27, 2024 · 凡是不注日期的引用文件,其最新版本适用于本标准。 GB/T14107-1993消防基本术语GB50166-2007火灾自动报警系统施工及验收规范GB29837-2013火灾探测报警产品的维修保养与报废GB50016-2014建筑设计防火规范GB50974-2014消防给水及消火栓系统技术规范GB25201-2010建筑消防设施的维护管理GA503-2004建筑消防设施检测技术规 … Web520,240. Code telegraphy. STANDARD 'TELEPHONES & CABLES, Ltd. Oct. 14, 1938, No. 29837. Convention date, Nov. 13, 1937. [Class 40 (iii)] In an arrangement for receiving signals transmitted as interruptions of carrier current, the signals are rectified in a circuit having, in series, two circuits with different time constants, one longer than the maximum …
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WebGB842322A GB29837/56A GB2983756A GB842322A GB 842322 A GB842322 A GB 842322A GB 29837/56 A GB29837/56 A GB 29837/56A GB 2983756 A GB2983756 A … Web报废条件及处理方式应符合gb29837的规定。 5.2.3.2蓄电池使用年限不超过四年,达到使用年限应报废。 没有达到使用年限,但出现表面严重变形、锈蚀、漏液等情况时,也应报废。 graveyard performance utah
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WebGB 29837-2013. English Name: Maintenance and discard for fire detection and alarm products. Chinese Name: 火灾探测报警产品的维修保养与报废. Chinese Classification: … WebIn China the fire detection and alarm products standard GB29837-2013 [10] states that the replacement period of a smoke alarm should be no more than 12 years. Two Indian … WebGB1064814A GB29837/63A GB2983763A GB1064814A GB 1064814 A GB1064814 A GB 1064814A GB 29837/63 A GB29837/63 A GB 29837/63A GB 2983763 A GB2983763 A GB 2983763A GB 1064814 A GB1064814 A GB 1064814A Authority GB United Kingdom Prior art keywords layer gelatine dye areas former Prior art date 1962-07-30 Legal status (The … graveyard performance discount code