secondary device meaning in English
次设备
二次装置
Examples
- Fluid flow in closed conduits : connections for pressure signal transmissions betwn primary secondary devices
密封管中流体流量:主要设备和次要设备间压力信号传输用连接件 - Fluid flow in closed conduits - connections for pressure signal transmission between primary and secondary devices
密封管中流体流量.主要设备和次要设备间压力信号传输用连接件