英语词汇“knapsack sprayer”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

单词	knapsack sprayer
释义	knapsack sprayer noun A sprayer consisting of a handheld nozzle supplied from a pressurized reservoir that is carried on the back like a knapsack.Treat a circular area of 1 to 1.2 metres in diameter at the base of each tree using a knapsack sprayer, making sure to follow all instructions on the product label.... A manual knapsack sprayer was used for all spraying. When spraying, it is advisable to use a knapsack sprayer.
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