Dozens of much-hyped "cures" developed by drug companies are either useless or have marginal effect.
数十种被制药公司吹得天花乱坠的所谓“治愈癌症的良药”，不是毫无作用就是作用甚微。
But in April a study of 500,000 people concluded that such a diet has only a marginal effect on cancer risk.
但就在四月，一个对50万人进行的研究得出的结论是，这种饮食方式对降低患癌症的风险作用甚微。
At best, however, this will have a marginal effect on the long march of Chinese history.
但是，这在中国历史长河中只会产生很小的影响。
The effect of different width of prepared row on winter wheat marginal effect is remarkable on high fertility conditions.
在高肥力条件下，不同预留行宽度对冬小麦边际效应影响显著。
The results showed that the marginal effect index could be used as a choice for tolerant dense planting potato breed and as a parameter of potato plant density.
结果表明，边际效应指数可作为选择耐密马铃薯品种和确定马铃薯品种种植密度的指标。
Whether death penalty has deterrent effect or not and whether death penalty has more marginal effect compared with life imprisonment are two different questions.
死刑有无威慑效果与死刑有无大于终身监禁的边际威慑效果是两个不同的问题。
Riparian zones are the important transitional regions for exchange of substance, energy, and information between river ecological system and land ecological system, and have obvious marginal effect.
河岸带是河流生态系统与陆地生态系统进行物质、能量、信息交换的一个重要过渡带，具有明显的边缘效应。
Riparian zones are the important transitional regions for exchange of substance, energy, and information between river ecological system and land ecological system, and have obvious marginal effect.
河岸带是河流生态系统与陆地生态系统进行物质、能量、信息交换的一个重要过渡带，具有明显的边缘效应。
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