When surveyors sight the summit, there is a risk they might not all measure the same point.
当测量员们看到山顶时，他们可能无法测量到同一个点。
Petra Kroon tested the new technique, which can measure emission values at a single point for 24 hours a day, 365 days a year and for several hectares at the same time.
佩特拉克朗测试了新技术，它可以每天24小时，一年365天在单独一个点就同时测出数公顷内的排放值。
The same with GDP: it was only ever intended to measure economic transactions and there's not much point in accusing it of failing to measure something else.
GDP也是如此：它只是为了衡量经济交易，如果指责它未能衡量出其它项目，则没有太大意义。
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