大气: atmosphere; air breath; heav ...采样: sampling; take sample方法: method; means; way; techniqu ...烟道气采样方法: stack sampling procedure大气采样: atmospheric sampling大气采样器: air sampler大气采样布点: air sampling location大气采样动力: power of air sampling采样方法: method of sampling; sampling method; sampling procedure底质采样方法: substrate sampling method饲料采样方法: methods for sampling of feed污水采样方法: sewage sampling method野外采样方法: field sampling technique商品农药采样方法: sampling method for commodity pesticides锅炉蒸汽的采样方法: methods for sampling boiler steem空气采样: air sampling空气采样法: impingement空气采样器: aerosol sampling device; air sampler; impinger空气采样网: air sampling network样方法: quadrat method; quadrat sampling method; use of quadrats采样方差: sample variance; sampling variance空气采样测量: airsampling measurement空气采样装置: air sampling rig汽车排气采样: sampling of auto exhaust采样方案, 抽样方案: sampling plan