The background concentrations of ambient air pollutants were used as evaluation stan-dards. 采用大氣污染物濃度的背景值為評價標準。
In this paper,we describe a new criterion of the parallel computing performence of heterogenous networks of workstations. 本文介紹了異構工作站網絡環境下一種新的并行計算性能評價標準。