以下为句子列表：
英文: Also used for general STOP VALVE symbol when amplified by specification.
中文: 如果有进一步的说明，也可用作通用的停止阀。
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英文: Because the hydrogen has the special kind in quality, its density is small, the molecular weight is small, so the common stop valve can't satisfy it requests, and, the hydrogen belong to the combustible and explosive gas, once leak happened, will exist hi
中文: 摘要由于氢气性质特殊，其密度小，分子量小，所以普通截止阀不能满足它的使用要求，而且氢气属于易燃易爆气体，一旦发生洩漏，会存在很大的隐患。
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英文: The company is specialized in the production of small diameter valve suitable for electrical station as well as sampling device and automatic feeding device for firepower electric plant, stop valve for high temperature and high pressure condition, throttl
中文: 公司主要专业生产小口径电站阀门及火力发电厂的炉内化学检测集中取样装置、炉内自动加药装置，高温高压截止阀，高温高压限流阀，反压式高效冷却器，双螺杆减压阀、微调阀等取样装置件和石油化工行业使用的管道闸阀，截止阀，隔膜阀，承插式快速接头，球阀及各种特殊阀门，仪表接头等。
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