山谷型卫生填埋场是我国卫生填埋场建设的主要形式之一。

Sanitary landfill is one of main methods to dispose municipal solid waste, and landfill in valley is an important form.

youdao

山谷型卫生填埋场是我国卫生填埋场建设的主要形式之一。

Sanitary landfill is one of main methods to dispose municipal solid waste, and landfill in valley is an important form.

youdao