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科学参考收录了1248194条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。
frequency-modulated audio tone
frequency-modulated carrier
frequency-modulated carrier current telephony
frequencymodulated cyclotron
frequency-modulated fuze
frequency-modulated generator
frequency-modulated oscillator
frequency-modulated pumping
frequency-modulated signal
frequency-modulated sonar
frequency-modulated sound
frequency-modulated synchrotron
frequency-modulated system
frequency-modulated telecontrol system generator
frequency-modulated voice frequency telegraph
frequency-modulating blade
frequency modulation
frequency modulation broadcasting
frequency modulation carrier telegraph
frequency modulation characteristic
frequency-modulation chart
frequency-modulation detector
frequency modulation deviation
frequency-modulation distortion
frequency modulation generator
frequency modulation index (FM index)
frequency-modulation laser
frequency modulation system
frequency modulation threshold
frequency modulation type altimeter
frequency modulator
frequency moment
frequency multiplication
frequency multiplier chain
frequency multiplier circuit
frequency-multiplier klystron
frequency multiplier mixer circuit
frequency number
frequency odulation telecommunication system
frequency of access
frequency of bud-variation
frequency of collision
frequency of disease development
frequency of flood
frequency of infinite attenuation
frequency of injuries
frequency of irrigation
frequency of joints
frequency of micturition
frequency of occurences
frequency of operation
frequency of oscillation
frequency of penetration
frequency of purchase
frequency of sampling
frequency of semen collection
frequency of stroke
frequency of urinatior
frequency of valve operation
frequency of vibration
frequency of wink
frequency of working
frequency optimum traffic
frequency plan
frequency polygon
frequency pool
frequency programming
frequency-programming system
frequency pushing
frequency pushing factor
frequency range
frequency ratio
frequency reference
frequency resolution
frequency response
frequency response of tape
frequency sampling theorem
frequency scale
frequency scrambler
frequency selecting amplifier
frequency selecting connector
frequency selection
frequency selective damping material
frequency selective earphone
frequency selective level indicator
frequency-selective level indicator
frequency selective network
frequency selective system
frequency selective voltmeter
frequency (sensitive) detector
frequency separating filter
frequency series
frequency-shared channel amplifier
frequency shift adapter
frequency-shift coding
frequency-shift communication
frequency shift communication system
frequency shift compensation
frequency-shift converter
frequency shift data
frequency shifted audio tone
frequency shifter
frequency-shift indicator
frequency shifting
frequency shift keyed radio channel
frequency-shift keyer
frequency shift keying
frequency-shift keying
frequency shift keying telegraph
frequency shift modulation
frequency shift modulation system
frequency-shift modulator
frequency shift receiver
frequency-shift signaling
frequency shift signal(l)ling
frequency-shift stability
frequency shift system
frequency-shift telegraphy
frequency shift transmission
frequency shift transmitter monitor
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