The double-bounded dichotomous discrete contingent valuation method recommended by US NOAA was applied to evaluate health gains from air quality improvement in Beijing.
采用目前美国国家海洋局（NOAA）推荐的双边界二分式条件价值评估方法，对北京市空气质量改善产生的健康效益进行评估。
The term "royalties" also includes gains derived from the alienation of any such right or property which are contingent on the productivity, use or disposition thereof.
“特许权使用费”一语还包括转让任何与生产、使用或销售有关的权利或财产取得的收益。
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