A basic example of an explicit attention is bookmarking a page or rating a movie.
显性注意力最基本的例子就是订阅网页或者是评论一部电影。
Off-line experiments are run on pre-collected data sets of users choosing or rating items.
离线实验使用预先收集的用户选择或者项目评分数据集。
But they do not explain the circumstances under which a user will be outed as having written a particular rating or review.
但是他们没有解释在哪种情况下一个用户因为写了某些特别的评级或评论而会被除名。
Some recent surveys show the president's overall approval rating at or just above 50 percent a far cry from higher numbers in the early days of his administration.
VOA: standard.2009.09.02
and I asked you to give yourself a percentage rating relative to the rest of the class, then if everybody was accurate, or at least not systematically biased, the number should add up to 50%.
我要你相比于其他同学的表现,给自己一个百分数,如果大家都准确地评价自己,或者说大家都不偏心于自己,那么平均百分数应该是50%的。
So if you're working with cyanide in the lab as potassium cyanide or sodium cyanide, those are what are called p h s's, it's a rating for different kinds of chemicals.
因此如果你在实验室中,需要用到氰化物,比如氰化钾或者氰化钠,这就是所谓的,“P,H,S“,这是化学药品有害程度的一个级别。
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