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Indicators Model STG-70H Performance indicators bias stability① (°/h, 1σ) 0.03 bias stability② (°/h, 1σ) 0.01 bias stability③ (°/h,1σ) 0.08 bias repeatability(°/h, 1σ) 0.01 random walk(°/h 1/2) 0.002 ...