频率分多路调制
frequency division modulation
频率时间调制
frequency time modulation
频率调制
frequency modulation
频移调制
frequency shift keying; FSK
平衡环式调制器
balance ring modulator
平衡调制
balanced modulation
平衡调制器
balance modulator; balanced modulator
群调制
group modulation
欠
lack of; not enough; owe
欠饱和流体
undersaturated fluid
欠补偿
under compensated
欠场同步电动机
permanent-field synchronous motor
欠处理
undercuring
欠处治
undercuring
欠单
accommodation kite; accommodation note; accommodation paper
欠电子
deficit electrons
欠叠
underlap
欠对准
misalignment
欠发达国家
less developed countries
欠付工资
back pay