open the front coverand remove the drum clean the corona write located on the drum 这句话什麽意思

问题描述:

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 front cover, and remove the drum, clean the corona write located on the drum
打开前盖,除去鼓,清洁写在鼓上的电晕
{这是按照这个断句翻译的,不知道后面还有内容吗;不知道什么行业的,大概如此吧}