坡度 （%） 1% 1.5% 2% 2.5% 3% 3.5% 4% 4.5% 5% 5.5% 6% 6.5% 7% 7.5% 8% 8.5% 9% 9.5% 10% 11% 12% 13% 14% 15% 16% 17% 18% 19% 20% 21% 22% 23% 24% 25% 26% 27% ...
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