The selection of greening materials and design of Pingxi Expressway is different from other expressways in Qinghai Province.
绿化材料的选择和设计是平西高速公路不同于省内其它公路的特色之一。
The selection of greening materials and design of Pingxi Expressway is different from other expressways in Qinghai Province.
绿化材料的选择和设计是平西高速公路不同于省内其它公路的特色之一。
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