In the case of graphs and equations, it includes making quick judgments about where lines should intercept the axes and about their slope, even when that is not at all obvious.

在图表和等式方面，即使当一切不明显，也能对行应在哪里截距轴心和倾斜度上作出迅速的判断。

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The system is based on factors that are easily available even in countries with poor facilities, such as bedrock geology, slope gradient and vegetation type.

该系统是根据即便在缺乏地质调查设施的国家也能容易获取的因素设计的，这包括基岩地质、山坡坡度和植被类型。

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Some environmental groups feel that even physically harmless tests could represent the first step onto a slippery slope that would ultimately lead to full scale deployment of these technologies.

一些环保团体认为，即使是一项本质上无害的试验，也有可能标志着滑向危险的第一步，根据滑坡理论，有了这第一步，就完全有可能最终导致全面大规模地应用这些技术。

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"We are unsure of the ultimate significance of more than one negative CV signal, but it could put Celebrex on an even slipperier slope given the totality of CV findings across the entire COX-2 category of products, " Anderson wrote.

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Even my ski slope-loving daughters wished we had more time to explore the backcountry trails.

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Such a slope over even a few years causes inflection points, wild disruptions and, sometimes, an earthquake that leaves permanent change.

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