Москвичей предупредили о резком похолодании09:45
The mission came hours after the first flight of the Blue Origin New Glenn rocket system, backed by Amazon boss Jeff Bezos.
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It was Nasa's most dangerous mission yet.
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公式： f(x)=x⋅Φ(x)≈0.5x(1+tanh[2/π(x+0.044715x3)])