| 1. | A metering tank is an elementary method of measuring volume flow . 量筒是测定容积流量的基本方法之一。 |
| 2. | Constant volume flow standard 定容式气体微流量标准装置 |
| 3. | Method of flow measurement by coriolis meters mass flow , density and volume flow measurement 用科里奥利仪测量流量的方法 |
| 4. | Methods for thd measurement of volume flow of gas of water - ring vacuum pump and compressor 水环真空泵和水环压缩机气量测定方法 |
| 5. | Methods for the measurement of volume flow of gas of water - ring vacuum pump and compressor 水环真空泵和水环压缩机气量测定方法 |
| 6. | Traffic volume flow 交通量流量 |
| 7. | Workplace atmospheres - pumps for the sampling of chemical agents with a volume flow rate of over 51 min - requirements and test methods 工作场所空气.体积流速大于51 min的化学试剂取样用泵.要求和试验方法 |
| 8. | Workplace atmospheres - pumps for the sampling of chemical agents with a volume flow rate of over 5 l min - requirements and test methods 工作场所空气.体积流速大于5公升分的化学试剂取样用动力泵.要求和试验方法 |
| 9. | Workplace atmospheres - pumps for the sampling of chemical agents with a volume flow rate of over 5 l min - requirements and test methods ; german version en 12919 : 1999 工作场所空气.超过每分钟5升容积流量的化学试剂抽样 |