单词	基层下层
释义	同基层下层--底基层
随便看	alpha particles alpha-particles alpha particle scattering alpha-particle scattering alpha-particle sensitivity alpha(-particle) spectrum alpha(-particle)--spectrum alpha-particle spectrum alpha particle velocity alpha particle; αparticle alpha period alpha--period alpha phase alpha-phase alpha phosphate（同 alpha tricalium phosphate） alpha-phosphorescence band alphaphotographic alpha-picolinic acid alpha-picolinic acid--αpicolinic acid alpha-picolinic acid，αpicolinic acid alpha-pilolite alpha piscis austrini alpha plateau alpha plus alpha plus 公司