t1（t1'）t2t2'T1T1'△P△P'△tm△tm'
26.180.763.5104.2106.50.80.845.4659.76
25.581.162.7111.1113.50.70.753.0367.71
26.578.762.998.9101.10.60.640.8954.38
26.577.162.396.198.40.50.538.9751.96
26.777.562.8101.7105.60.40.444.9159.02
26.881.665.2111.9115.50.30.353.0767.69
26.982.666.2119.6111.30.20.260.6562.71
27.179.565.4110.5112.70.10.152.9564.57
查表 ===>
△t平均53.18Cp Cp'
△t'平均45.19 4.175 4.174
Wc(Wc'）K K'
0.0034813.847.21 0.0032511.31 5.92 0.0030112.74 6.68 0.0027511.83 6.28 0.002469.22 4.98 0.002137.29 4.00 0.00174 5.29 3.61 0.00123 4.03 2.42
A
0.00126
A=A'=(π/4)*d2