扭矩换算公式：
1 n·m = 8.8507457916 in·lbs | 1 in·lbs = 0.112985 n·m
in·lbs = n·m × 8.8507457916 | n·m = in·lbs × 0.112985（结果保留三位小数）
*派生自：1 n = 0.737562 lbf；1 m = 39.3701 in → 1 n·m = 0.737562×39.3701 ≈ 8.8507457916 in·lbs