hard board mill wastewater

例句：

1. 1.The factory discharges hard board mill wastewater into the river every day.
   这家工厂每天将硬木板磨坊废水排放到河里。
2. 2. To reduce pollution, we need to treat hard board mill wastewater before it reaches the ocean.
   为了减少污染，我们需要在它到达海洋之前处理硬木板磨坊废水。
3. 3. The treatment plant uses advanced technology to purify hard board mill wastewater.
   该处理厂使用先进的技术来净化硬木板磨坊废水。