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Flushing saves (8-5) LX10 = 30L = cubic meter, multiplied by the density of water to get 30 kg.
1t = 1000 kg, divided by density to get 1000L, number = 1000 5 = 200
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A little dizzy, you play a little clearer.
What's unsafe about this, generally large factories and dormitories have this facility. Our company's central air conditioning can supply tens of thousands of people in the factory.
That is, the smoke exhaust pipe and the sewer pipe are connected.
Refer to the Administrative Measures for Residential Interior Decoration and Decoration >>>More
Let's make an assumption.
First, the sun bursts: it is possible to burst dry, but the key is that there will only be cracks, natural cracks. I can't explain anything unusual. Also, if you are exposed to the sun, you should also be within the range of direct sunlight. >>>More
It is estimated that the school toilet is dirty and I dare not go there.