double stage meaning in English
二级的
Examples
- Variable moving blade double stage axial fan
动叶可调双级轴流式风机 - Double stage voltage regulator
双节电磁振动式调节器 - Centre opening and double stage
套;中分双折式 - Double stage compressor
双级压气机 - Experimental research on the water chiller heater of air - source heat pump of the single - double stage mixed heat pump system
混合式热泵系统中空气源热泵的实验研究