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桶装危险货物电石安全排气装置的可靠性研究王瑾曹清筠＊单国财李光霁＊周惟菁上海铁路局中心卫生防疫站（上海，２０００７１）＊铁道部科学研究院运输研究所（北京，１０００８１）关键词电石；ＤＡ—Ⅱ型低压安全阀；铁路运输安全；乙炔气浓度目前国内铁路运输电石仍采用
Study on the Reliability of Galvanic Safety Exhaust Device for Bottled Dangerous Goods Wangjin Cao Qingyun * Shan Guochen Li Guang 霁 * Zhou Weijing Central Health and Epidemic Prevention Station of Shanghai Railway Administration (Shanghai, 200071) * Institute of Transportation, Academia Sinica, Beijing 100081 Keywords calcium carbide; DA-Ⅱ low-pressure safety valve; railway transportation safety; acetylene gas concentration At present, the domestic railway transportation of calcium carbide is still used