 |
| English | Chinese |
| air sampling system | 空气取样系统 |
| sampling technique Method of selecting items at random from a set in such a manner that the sample will be representative of the whole | 取样技术 (从一个集合中随机选取某些项的方法，认为样本会代表整体。) |
|
| English | Chinese |
| air sampling system | 空气取样系统 |
| sampling technique Method of selecting items at random from a set in such a manner that the sample will be representative of the whole | 取样技术 (从一个集合中随机选取某些项的方法，认为样本会代表整体。) |