水平传播

带有REV-LTR片段的马立克氏病病毒重组野毒株与超强毒株致病性和横向传播性比较

horizontal facial cleft

horizontal deflecting circuit【电子】;horizontal deflection circuit【电子】

carbonization plant with horizontal chamber

fractionating column with horizontal grids

horizontal honing machinne

multi-desk conveyer, horizontal conveyer, vertical conveyer

horizontal smoke tube boiler

horizontal consolidation