selfube iron

例句：

1. 1. The self-priming iron is easy to use and canbe used for a long time.
   自吸式铁管使用方便，可以长时间使用。
2. 2. The self-priming pipe is suitable forwater supply systems.
   自吸式管道适用于供水系统。
3. 3. The self-priming ironis widely used in industrial processes.
   自吸式铁管在工业过程中得到了广泛应用。