The economically rational dosage of MCPA is set as 3000~4500g /hm2. The lawn weeds can be effectively control at 2~4 applications annually.是什么意思_The economically rational dosage of MCPA is set as 3000~4500g /hm2. The lawn weeds can be effectively control at 2~4 applications annually.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句