把三磅盐混合在一加仑的肥皂水里，用喷雾器喷洒到叶和茎上，会杀死这种顽强的有害物。
Three pounds of salt mixed with a gallon of soapy water, applied to the leaves and stems of poison ivy with a sprayer, will kill this tenacious pest of a plant.
校准农药喷雾器的目的，是为了保证按所需的量予以喷洒。
Calibrate pesticide sprayers in order to assure that the desired application rate is being applied.
这样就能实现每次二行的喷洒农药作业，比现有的单、双喷头喷雾器提高工效近一倍。
Compared with the present sprayer with a single spray head and the present sprayer with double spray heads, the utility model has the advantage that work efficiency is increased by about one time.
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