In agricultural production, pumpirrigation and drainage are the main machinery.
在农业生产中，泵是主要的排灌机械。
2
The efficiency of a parallel connection double-pumpirrigation System is not only related to the break - down and recovery frequency but also to the operation and maintenance fashion of the System.
双泵并联灌溉系统的有效度不仅与机组故障率和修复率有关，而且与系统的运行方式及维修方式有关。
3
Then he walks around the corner to a bank, to raise a loan to buy a new irrigationpump.