城市: city; town; abad; conurbatio ...燃气: gas中: hit; fit exactly氨: ammonia; hydrogen nitride含量: content测定: determine; determination; se ...城市燃气中硫化氢含量测定: determination of hydrogen sulfide of gas in urban area城市燃气中焦油和灰尘含量的测定方法: determination of coal tar and dust of gas in urban area烟气中氧含量测定: flue gas oxygen measurement城市燃气: gas城市燃气热值测定方法: method of testing for calorific value of gas in urban areas氨含量的测定: liquefied anhydrous ammonia estimating of ammonia content城市燃气分类: classification of town gas城市燃气相对密度测定方法: method of testing for relative density of gas in urban area氨含量: ammonia content苍南城市燃气工程: cangnan city gas project城市燃气供应系统: gas supply system大邱城市燃气公司: dae gu city gas co. ltd江南城市燃气公司: kang nam city gas co., ltd温州城市燃气工程: wenzhou city gas project氮含量测定: meat and meat products-method for determination of nitrogen content定量；含量测定: assay氟含量测定: messung f.des fluorgehalts钙含量测定: meat and meat productsmethod for determination of calciumum硅含量测定: silica test
