knifer搅土器, 剖土机knifen.刀v.用刀切割knife of switch开关闸刀knife spotlight切割器的照明灯knife mechanism刀架机构knife roller gin刀辊式轧棉机knife applicator施肥刀形开沟器knife-equipped装有割刀的knife edge relay刀口式继电器Knife Livebearern.小刀鳉(花鳉科)knife sterilizer刀具消毒器knife Thiersch's