问题描述： 该泵在使用过程中，有的部件磨损较快，需随设备附带，必要时更换。明细如下： 1个回答 分类：英语 2014-11-10 问题解答： 我来补答 Some parts of this pump may wear out quickly in the usage,which need to be attached to the equipment and replaced when necessary.The list of these parts is as follows: 展开全文阅读
