Based on the investigation and research in Shijiazhuang, the losses of wastewater irrigation are estimated. 以石家莊市污灌區的調研為基礎，對污水灌溉造成的經(jīng)濟損失進(jìn)行了估算。
We are a foreign invested manufacturer with our own factory outside of Shijiazhuang. 我司是外商獨資企業(yè)，工廠(chǎng)在石家莊市外。
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