词汇	Separation/preconcentration
释义	Separation/preconcentration 分离富集
随便看	long wave diathermy apparatus long-wave directional antenna long-wave direction finder long wave equation longwave evolution equation longwave feedback long wave fluctuation long wave FM radio telephone long-wave formula Longwave infrared Long Wave Infrared long-wave infrared long-wave infrared afocal zoom telescope longwave infraredlwir Long Wave Infrared Probe long wave infrared radiation long wave infrared region long-wave instability long-wave irregular data long wave irregularity long wavelengh IR vidicon long wavelength pass filter long wavelength pass optical filter long wavelength-pass optical filter long wavelength photodetector