对需24小时连续不停运转的泵，应备用三台泵，运转，一台备用，一台维修。
On the need for a 24-hour non-stop operation of the pump, should reserve three pumps, operation, a backup, a maintenance.
对需24小时连续不停运转的泵，应备用三台泵，一台运转，一台备用，一台维修。
On the need for a 24-hour non-stop operation of the pump, should reserve three pump, a functioning, a backup, a maintenance.
可以买一台便宜的新笔记本电脑，或者可以将一台用旧了的的笔记本去当地的电脑维修中心重装，删除里面所有的旧资料。
Either buy a new laptop for cheap or take one of your old ones to your local computer repair store and have its contents erased.
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