请输入您要查询的英文单词:
单词
knapsack sprayer
释义
knapsack sprayer
noun
or
knapsack pump
:
a spraying apparatus consisting of a knapsack tank together with pressurizing device, line, and sprayer nozzle, used chiefly in fire control and in spraying fungicides or insecticides
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更新时间:2025/9/22 13:03:45