Based on engineer example, it is illustrated, that modified vent il ation of building drainage system can improve drainage system and indoor air quality.
结合工程实例，说明了加强建筑排水系统通气管道设置后，排水系统工况及室内空气卫生状况可以得到改善。
More than 5 years' experience in on-site drainage and electricity engineer, familiar with the project budget and settlement, possesses the qualification of above cost engineer ;
从事施工现场水电工程师岗位5年以上，熟悉本专业工程预结算工作，持有造价员以上执行资格；
More than 5 years' experience in on-site drainage and electricity engineer, familiar with the project budget and settlement, possesses the qualification of above cost engineer ;
从事施工现场水电工程师岗位5年以上，熟悉本专业工程预结算工作，持有造价员以上执行资格；
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