英语翻译The first step is to examine the data.A simple plot of t

The first step is to examine the data.第一步是检查这些数据. A simple plot of the results of one method against those of the other (fig 1) though without a regression line is a useful start but usually the data points will be clustered near the line and it will be difficult to assess between-method differences. 简单的绘制一种方法所得结果的图表是有用的开始,此图表虽然没有一条回归线,但针对其他的那些结果（图1）,但通常这些数据点将汇聚到靠近该回归线,而要估计方法之间的差别将会是很困难的.A plot of the difference between the methods against their mean may be more informative. 方法之间关于它们平均值差别的图表可能更具信息作用Fig 2 displays considerable lack of agreement between the large and mini meters, with discrepancies of up to 80 l/min, these differences are not obvious from fig 1.图2显示了小表计和大表计之间符合性有相当大的缺失,差异高达80 l/min. 这些差别从图1看不明显. The plot of difference against mean also allows us to investigate any possible relationship between the
measurement error and the true value.针对平均值的差别图也让我们能研究测量误差和实际值之间可能的任何关系.We do not know the true value, and the mean of the two measurements is the best estimate we have.我们不知道真实的值,而两种测量结果的平均值是我们所能做出的最好估计. It would be a mistake to plot the difference against either value separately because the difference will be related to each, a well-known statistical artefact. 要分离地针对任一种值绘制差别图会是一个错误,因为此差别将与每一个差别,即一个未知的统计伪差有关,

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第一步是检查数据。情节简单的结果的一种方法对那些其他（图1 ）虽然没有回归线是一个有益的开端，但通常的数据点
将集中在蓝线附近和将难以评估的方法的差异。阴谋之间的差别的方法对他们意味着可能会更丰富。图2
显示器相当缺乏之间的协定大型和小型米，差异高达80升/分钟，这些差别并不明显从图1 。情节的差异也意味着对我们可以调查任何可能之间的关系
测量误差和真正的价值。我们不知道...