Extreme distance RACES include the marathon over 42 kilometers and the men's 50 kilometers road walk.

超长距离径赛项目有马拉松，距离为42公里以上，还有男子50公里竞走。

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Because something happened in the past, and now he and others maintain extreme distance (in the two Settings?)

因为过去发生的一些事，现在他极端地与他人保持着距离(中二设定？)

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The calculation formula of extreme distance and limit interval to draw curves by straight lines on projection plane is deduced.

推导了投影平面上以直代曲的极限距离计算公式，代曲极限间隔值的探求。

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But long-distance extreme sniping of this sort is usually beyond the abilities of even the most talented marksman.

FORBES: Fiber-Optic Sensors Set Stage for Extreme Snipers

Chronic hypobaric hypoxia (lack of oxygen): where the expedition will encounter equivalent altitudes up around 3, 800m due to the extreme cold temperatures and distance from the Equator which further decreases atmospheric pressure.

BBC: Viewpoint: The last great polar challenge

As far as long distance goes, even I have to admit it's extreme.

FORBES: Magazine Article