drum什么意思

drum什么意思 单词drum什么意思? drum什么意思 打印机出现Dust on drum.Clean the corona wire lo打印机出现Dust on drum. Clean the corona wire located on the drum. Open the front cover and remove the drum. 什么意思阿? drum insert the drum card的意思是什么 knock out drum的中文意思是什么 drum的复数形式什么?快 change drum change drum change drum change drum 英文句子纠错 what is the drum like?what is the drum like?句意：这鼓象什么 change drum change drum drum是什么意思 激光打印机的toner和drum分别表示什么意思?是toner表示墨粉,drum表示硒鼓吗?可以激光打印机不是不用墨来打印吗?为什么还有toner?我的打印机现在显示toner用完了,那我是应该去买墨盒还是硒鼓盒 open the front coverand remove the drum clean the corona write located on the drum 这句话什麽意思这句话什麽意思 open the frone cover ang remove the drum . clean the corona wire located on the drum .这是我家打印机上出现的,啥意思啊?谁知道? 英语翻译case 木箱crate 木条箱skid drum 圆桶?barrel/cask reel/roller 卷 但roller怎么也有滚筒的意思啊?和上面的桶有什么不同呢hobbock?can/tin 罐装