网络与数据通信 有线网络 释文 quadrature amplitude modulation, QAM 正交振幅调制
- fuel lean flame
- fuel-lean flame
- fuelling
- fuel management
- fuel management system
- fuel of ironmaking
- fuel oil
- fuel oil additive
- fuel oils
- fuel pellet
- fuel permeation
- fuel pumps
- fuel quantity measurement system
- fuel ratio
- fuel reforming
- fuel rich flame
- fuel-rich flame
- fuel-rich gas staged combustion liquid rocket engine
- fuel rich propellant
- fuel rod
- fuels
- fuel-saving stove
- fuels for metallurgical industry
- fuel smart pumps
- fuel spray nozzle