问题: treated water/back wash/auto man中文什么意思
解答:
treated water
过滤过的可饮用水
Water that has been filtered and/or disinfected; sometimes used interchangeably with “potable” water.
back wash
反向清洗过滤器
The process of cleaning a filter by reversing the flow of water through it. Accumulated sediments are sent to waste。
auto man
1906 年的一首老歌
如果是缩写的话， 我猜应该是automatic manipulation, 自动操作
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