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["气云初始状态确定"]
[null,"液氨罐"]
["Cp"]
["T"]
["To"]
["H"]
["F",{"$error":"#DIV/0!"}]
["Y",{"$error":"#DIV/0!"}]
[]
["M"]
["液体泄漏量"]
["液体密度p"]
["气云初体积Vo",{"$error":"#DIV/0!"}]
["气云初密度",{"$error":"#DIV/0!"}]
["扩散的气云量，Q",{"$error":"#DIV/0!"}]
[]
["判断是否重气"]
["环境空气密度"]
["g"]
["环境风速"]
["g0'",{"$error":"#DIV/0!"}]
["判断是否重气",{"$error":"#DIV/0!"},"（小于等于0.2，则用非重气扩散模型；否则使用重气云扩散模型）"]
[]
["用e准则求转变点位置"]
["ecr"]
["Eo",{"$error":"#DIV/0!"}]
["转变点下风向距离Xf",{"$error":"#DIV/0!"}]
["转变点物质浓度,g/m3",{"$error":"#DIV/0!"}]
[]
["虚源位置"]
["X＝Xf",{"$error":"#DIV/0!"}]
["假设虚源距离Xv"]
["x方向扩散系数",0]
["y方向扩散系数",0]
["z方向扩散系数",0]
[]
["转变点浓度C,g/m3",{"$error":"#DIV/0!"}]
[]
["任意点处的物质浓度"]
["X小于Xf的浓度"]
["X"]
["X点浓度 ",{"$error":"#DIV/0!"}]
["X大于Xf的浓度计算 "]
["X"]
["X'",{"$error":"#DIV/0!"}]
["x方向扩散系数",{"$error":"#DIV/0!"}]
["y方向扩散系数",{"$error":"#DIV/0!"}]
["z方向扩散系数",{"$error":"#DIV/0!"}]
[]
["X点浓度C,mg/m3",{"$error":"#DIV/0!"}]
[]
[]
[]
["标准名称","化学毒物职业病危害风险评价技术指南"]
["编制单位","天津渤海化工集团有限责任公司劳动卫生研究所"]
[null,"南开大学"]

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