求翻译：我国城市家庭日人均用水量已由1980年不足80L上升到2004年的200L左右。我国各城市、乡镇建筑中现在使用的重力冲水厕所需要用大量自来水冲洗粪便，每冲洗一次消耗自来水9L左右，最少的也要6L。是什么意思？

China's per capita water consumption by urban households on less than 80L in 1980 rising to about 2004 200L. China's cities, towns buildings are now used in gravity flush toilets need to rinse with plenty of water waste, water consumption per flush 9L time around, the least have to 6L.

On my urban families per capita water consumption by 1980 has been less than 80 L L rose to around 200 in 2004. All of our cities, towns and villages are now used in construction of gravity flush toilets need to use a large tap water rinse rinse stool, each one consumed around L tap water, at least

The our country city family date average per person water consumption insufficient 80L rose from 1980 to about 2004 200L.The our country various cities, in the villages and towns construction the present uses the gravity flushes the bathroom to need to use the massive running water flushing excremen

Family day in cities of China per capita consumption has risen less than 80L from 1980 to 2004, about 200L. China's cities, villages and towns now uses gravity to flush toilets in the building needs with plenty of running water washing faeces, about once in every flush consume tap water 9L, minimal

Family day in cities of China per capita consumption has risen less than 80L from 1980 to 2004, about 200L. China's cities, villages and towns now uses gravity to flush toilets in the building needs with plenty of running water washing faeces, about once in every flush consume tap water 9L, minimal