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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 aging
frequency allocation
frequency analysis
frequency analysis compaction
frequency analysis technique
frequency and time standard
frequency audiometer
frequency band
frequency band compression
frequency bandwidth
frequency booster
frequency breakdown
frequency carrier deviation meter
frequency-changer
frequency-changer crystal
frequency- changer set
frequency channel
frequency chart
frequency class
frequency code
frequency coding
frequency component
frequency constant
frequency control
frequency-conversion crystal
frequency conversion effect
frequency conversion (电子的)
frequency converter
frequency-converter
frequency converter tube
frequency convolution theorem
frequency counter
frequency crossing
frequency curve
frequency cutoff
frequency deceleration
frequency demodulation
frequency demultiplication
frequency demultiplier
frequency density
frequency detector
frequency deviation
frequency device
frequency diagram
frequency difference
frequency-difference detector
frequency difference resonance
frequency discontinuity
frequency discriminating circuit
frequency discriminating optical chopper
frequency-discrimination
frequency discrimination
frequency discrimination telegraph
frequency dispersion
frequency distortion
frequency distribution
frequency-distribution curve
frequency distribution table
frequency divider
frequency divider stage
frequency dividing circuit
frequency dividing ratio
frequency division
frequency-division audiometer
frequency-division modulation
frequency division multiplex
frequency division multiplex system
frequency division multiplier
frequency division of noise
frequency division system
frequency domain
frequency-domain analyser
frequency-domain analysis
frequency domain criterion
frequency-domain equalizer
frequency-domain model
frequency-domain time series
frequency-doubled
frequency-doubled effect
frequency double laser
frequency doubler
frequency doubling
frequency drag
frequency eliminator
frequency equalizer
frequency-exchange signaling
frequency-field function
frequency frogging
frequency function
frequency graph
frequency group
frequency-halving circuit
frequency-identification unit
frequency-independent antenna
frequency indicator
frequency interlace
frequency-interlace technique
frequency interlacing
frequency interleave
frequency-interleaved pattern
frequency interleaving
frequency interleaving system
frequency interpretation of probability
frequency inversion
frequency keying
frequency keying method
frequency limit
frequency limitation
frequency lock
frequency locking
frequency magnitude
frequency magnitude coefficient
frequency-marker oscillator
frequency matching
frequency measuring bridge
frequency measuring count-er
frequency meter
frequency-meter of network
frequency mixer
frequency mixing
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