圆弧中心角与弧长、弦长、弓高换算表.docx

a—中心角（度）、H—弓高系数、 C—弦长系数、L—弧长系数表中为圆弧半径R=1mm时，a与C、 H、L的换算关系当RH1时，实际弦长、弓高和弧 长=RX相应系数aCHLaCHL10.01740.0000380.01751.50.02620.0000860.026220.03490.0001500.03492.50.04540.0002600.045430.05410.0003700.05413.50.06280.000490.062840.07150.0006400.07154.50.08020.000810.080250.08900.0009900.08905.50.09760.001190.097760.10640.0014200.10646.50.11510.001660.115270.12380.0019200.12397.50.13250.002200.132680.14120.0025000.14138.50.15000.002810.150090.15860.003150.15889.50.16560.003430.1658100.17430.003800.174510.50.18300.004190.1832110.19170.004600.191911.50.20030.005030.2007120.20900.005480.209412.50.21770.005940.2181130.22640.006430.226813.50.23500.006930.2356140.24370.007450.244314.50.25240.007990.2530150.26100.008550.261715.50.26970.009130.2705160.27830.009730.279216.50.28690.010340.2879170.29560.10980.296717.50.30420.011630.3054180.31280.012310.314118.50.32140.013000.3228190.33000.013710.331619.50.33860.014440.3403200.34720.015190.349020.50.35580.015950.3577210.36440.16740.365621.50.37300.017540.3752220.38150.018370.383922.50.39010.019210.3926230.39870.020070.401423.50.40720.020950.4101240.41570.021840.418824.50.42430.022760.4275250.43280.023700.436325.50.44130.024650.4450260.44980.025620.457326.50.45840.026610.4624270.46680.027620.471227.50.47530.028650.4799280.48380.029690.488628.50.49220.030760.4973290.50070.031840.506129.50.50910.032940.5148300.51750.034060.523530.50.52600.035200.5322310.53430.036360.541031.50.54280.037530.5497320.55120.038720.558432.50.55960.039940.5671330.56790.041160.575933.50.57630.042410.5846340.58460.043680.593334.50.59290.044960.6020350.60130.046270.610835.50.60960.047590.6195360.61790.048930.628236.50.62620.050280.6369370.63450.051660.645737.50.64280.053050.6544aCHLaCHL380.65270.054750.664838.50.66090.056180.6736390.66910.057630.682339.50.67740.059100.6916400.68560.060580.699740.50.69370.062090.7084410.70190.063610.717241.50.71010.065150.7259420.71820.066710.736442.50.72640.068280.7434430.74360.069880.752143.50.74260.071490.7608440.75070.073120.769544.50.75880.074760.7782450.76640.076430.787045.50.77490.078110.7957460.78290.079810.804446.50.79090.081520.8132470.78900.083260.821947.50.80690.085010.8306480.81490.086780.839348.50.82290.088560.8481490.83080.090370.856849.50.83880.092190.8655500.84670.094030.874250.50.85460.095880.8830510.86240.097750.891751.50.87030.099640.9004520.87820.101550.909152.50.88600.103470.9179530.89380.405420.926653.50.90160.107370.9353540.90930.109350.944054.50.91710.111340.9528550.92330.112940.959755.50.93260.115380.9702560.94030.117420.978956.50.94800.119480.9877570.95570.122550.996457.50.96330.123651.0051580.97100.125761.013858.50.97860.127881.0226590.98620.130031.031359.50.99380.132191.0400601.00130.134861.048760.51.00890.136551.0575611.01640.138761.066261.51.02390.140991.0749621.03140.143231.083662.51.03890.145491.0937631.04630.147761.101163.51.05370.150051.1098641.06110.152361.118564.51.06850.154681.1273651.07590.157021.136065.51.08320.159371.1447661.09060.161741.153466.51.09790.163711.1622671.10510.166531.170967.51.11240.168951.1796681.11960.171391.188368.51.12690.173841.1971691.13410.176301.205869.51.14120.178781.1145701.14840.181281.223270.51.15550.183791.2320711.16260.18631.240771.51.16970.18891.2494721.17680.19141.258172.51.18380.19401.2669731.19090.19661.275673.51.19780.19821.2843741.20480.20181.293074.51.21180.20451.3018751.21870.20711.310575.51.22560.20981.3192761.23250.21241.327976.51.23940.21511.3367771.24620.21791.345477.51.25300.22061.3541781.25980.22331.362878.51.26660.22611.3716791.27330.22881.380379.51.28000.23161.3890801.28670.23441.397780.51.29340.23721.4065811.30000.24011.415281.51.20660.24291.4239821.31320.24581。