分析人士称：“所有发达国家吸烟者的比例都在下降。”在大多数市场里，下降趋势基本是一条直线。

'the percentage of smokers is declining across the developed world, and the declines are more or less in a straight line in most markets,' said analysts.

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实验结果表明，直线电动机的伺服刚度只受位置环比例增益的影响较大，而其它的控制参数对伺服刚度幅值影响不大。

The result presents that the servo rigidity is more influenced by proportion plus of position loop than by other parameters.

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直线的斜率与绘图所选用的比例尺寸无关。

The slope of a line is independent of the scales chosen to prepare the graph.

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People used to consume a relatively small percentage of their calories from beverages, but for a variety of reasons including marketing, the percentage of calories from other beverages other than things like milk has gone way up.

人们过去通过饮料摄入的热量,所占比例相对较少,但是由于很多原因,其中包括市场营销,除了牛奶这类饮品以外,其他饮料中的热量比例直线上升

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选