Materials and Methods: 22 patients were radiographed in PAview and left lateral view with esophageal barium swallow, 19 were confirmed by operation, 2 by angiography, 1 by US doppler.
In view of the characteristics of the nitrogen containing, organic wastewater from the production of nylon 6 (PA 6), a pre denitrification process is proposed for the treatment of the wastewater.
针对锦纶- 6 (PA - 6)含氮有机废水特性，提出前置反硝化脱氮工艺处理锦纶- 6废水。
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On a parcel almost a kilometer in length, Personal Architecture (pa) realized a new-built home with a sweeping view of the surrounding meadows and the nearby church tower.