1.Usati washandisa mapeji ekutonhora: kutanga, chenesa marara papepa rinotonhorera uye uchenese 1-2 nguva nemishonga inouraya utachiona;ipapo, ongorora pombi yemvura, magetsi, pombi yemvura, gomba rekupfapfaidza mvura, pombi yemvura sefa permeability, kuchengetedza mvura inozadza dziva nemvura yakachena kuona kuti ...
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