BS6853:1999 Annex B1,B2: Code of practice for fire precautions in the design and construction of passenger carrying trains-Annex B: Determination of weighted summation of toxic fume,R.
BS6853:1999: 载客列车设计与构造防火通用规范-附录B1,B2: 测定有毒烟雾的加权总和R值。
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