在运行中，难免会发生故障和损坏，以致不能正常抽水。

In operation, to a fault and will inevitably damage, which can not be normal pumping.

youdao

在运行中，难免会发生故障和损坏，以致不能正常抽水。

In operation, to a fault and will inevitably damage, which can not be normal pumping.

youdao