pump liner

• 泵的衬里

pump liner的用法和样例：

例句

1. The suitcase liner is a piece of soft cloth.
   箱子的衬里是一块很软的布。
2. Where maintenance work includes the cutting into the liner of a column or vessel, care is necessary in case there is hazardous material trapped behind the liner.
   当维修作业包括切割进塔器或容器的衬里中时，则需注意衬里后面是否隐藏有危险物质。