May 25, 2010 - As carbon Expo 2010 opens this week in Cologne, Germany, carbon traders face an uncertain future and lower prices, with a new global climate change agreement still up in the air.
2010年5月25日——随着2010年碳博览会本周在德国科隆开幕，而且新的全球气候变化协议仍悬而未决，碳交易商们将面临不确定的未来和较低的碳价。
The uncertain degree of evaluating fluoride in air environment with electrode is a complicated task in environmental monitoring analysis.
评估用电极法测定环境空气中氟化物的不确定度在环境监测分析中是一个复杂和繁琐的事。
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