单词	超声导盲器
释义	超声导盲器医ultrasonic guides for the blind
随便看	fractionation column fractionation-conversion fractionation correction fractionation crystallization fractionation curve fractionation degree fractionation distribution fractionation dose Fractionation,Dose fractionation due to capillary leak fractionation effect fractionation efficiency of tower fractionation factor Fractionation factors Fractionation,Field Flow fractionationg column fractionationisomerization aftertreatment fractionation isomerization aftertreatment fractionation mechanism fractionation method Fractionation model fractionation of dose fractionation of humic substance fractionation of radiation fractionation of soil inorganic p