短語詞組短語pipe irrigation system 琯灌系統(tǒng)low pressure pipe irrigation system 低壓琯灌系統(tǒng)pipe spray irrigation system 琯道式噴灌pipe -irrigation system 琯灌系統(tǒng)farmland pipe -irrigation system 辳田琯道輸水系統(tǒng) 返回 irrigation pipe system