连续空气取样 continuous air-sampling smoke detector: 连续空气采样感烟探测器continuous sampling: 连续采样; 连续抽样; 连续进取; 连续取样air sampling: 空气采样; 空气抽样; 空气取样continuous powder sampling: 连续粉末取样continuous sampling plan: 连续抽样方案下载手机词典可随时随地查词查翻译