The exhaust gas in the EPC casting workshop was collected by a gas sampler, and the composition of the exhaust gas was analyzed by a gas chromatograph.

• 摘要以消失模铸造车间生产过程中排放的尾气为研究对象，利用大气采样器收集尾气，用气相色谱方法对其进行采样分析，得到了尾气气体的成分组成。