Studies on physical synergism for preventing and curing Aphis gossypii on cucumbers with DDVP smoking agent in plastic film greenhouses是什么意思_Studies on physical synergism for preventing and curing Aphis gossypii on cucumbers with DDVP smoking agent in plastic film greenhouses在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句