single-helix的相关资料：
临近单词
single loan
single
single-rail alternating current track circuit
single-clove directional seed metering device
single mode wavelength-division demultiplexer
Single-tuned intermediate frequency amplifier
single-knife hydraulic rubber cutting machine
Single integrated tachometer and speedometer.
single-channel frequency modulation telemeter
single-resonant optical parametric oscillator
single-commutation direct-current signaling
Single channel-controlled air defense missile
