b1b2t b1b2t 1 1.20 1.140.9023 3.0010.448.202 1.50 1.41
1.1124 4.0013.76
10.803 1.75 1.63 1.2825 5.0017.0013.354 2.00 1.84 1.4426 6.0020.1615.835 2.50 2.75
2.1627 4.0015.36
12.066 3.00 3.24 2.5428 5.0019.00
14.927 2.50 3.75
2.9429 6.0022.5617.718
3.00
4.44
3.4930
4.0018.5614.579 4.00
5.76 4.5231 5.0023.00
18.0510 2.50 4.75
3.7332 6.0027.3621.4811 3.00 5.64
4.43338.003
5.8428.1312 4.007.36 5.7834 4.0021.7617.0813 2.50 5.75 4.5135 5.0027.00
21.2014 3.00 6.84
5.3736
6.0032.1625.2515 4.008.96
7.0337
8.0042.2433.1616 5.0011.008.6438 4.0024.9612016年中央一号
文件 9.5917 3.008.04
6.3139 5.0031.00
24.3418 4.0010.56
8.2940 6.0036.9629.0119 5.0013.0010.21418.0048.64
38.18
20 3.009.24
7.2521 4.0012.16
9.5522
5.0015.00
11.78
截面积cm 2
160
b1、b2:为等边边长 t:为壁厚
x、y:为截面特性
理论重量
kg/m 序号
尺寸(mm)25
90
30
10040120
50140
7080
b1b2t
b1b2t 1 1.20 1.74 1.3731 3.008.64 6.782 1.50
2.16 1.7032 4.0011.368.923 2.50
3.75 2.9433 5.001被动语态的构成
4.0010.994 3.00
4.44 3.4934 3.0010.448.205 4.00
5.76 4.5235 4.00
13.7610.806 2.50 4.25 3.3436 5.0017.0013.357 3.00
5.04 3.9637
6.00
20.1615.838 4.00
6.56 5.1538 3.0011.649.149 2.50 4.75 3.7339 4.00
15.3612.0610 3.00
5.64 4.4340 5.0019.0014.9211 4.007.36 5.7841
6.0022.561
7.7112 3.00
6.84 5.3742 4.0016.9613.3113 4.00
8.967.0343 5.0021.0016.4814 5.0011.008.6444 6.0024.9619.5915 2.50 5.75 4.5145 4.0019.3615.2016 3.00 6.84 5.3746 5.00分词系统
24.0018.8417 4.00
8.967.0347 6.0028.5622.4218 5.00
11.008.64488.0037.4429.3919 3.008.04 6.3149 4.0018.5614.5720 4.00
10.568.2950 5.00
23.0018.0521 5.0013.0010.2151 6.0027.3621.4822 3.007.44 5.84528.0035.8428.1323 4.00
9.767.6653 4.0021.7617.0824 5.0012.009.4254 5.00
27.0021.2025 3.00
8.04 6.3155 6.0032.1625.2526 4.00
10.568.29568.0042.2433.1627 5.0013.0010.2157 4.0023.3618.3428 3.008.64 6.7858 5.00
29.0022.7729 4.00
11.368.9259 6.0034.5627.1330
5.0014.0010.99608.0045.44
35.67
序号
12.7mm高射机
尺寸(mm)60
60
b1:为长边边长 b2:为短边边长 t:为壁厚
x、y:为截面特性
序号尺寸(mm)截面积cm 2理论重量
kg/m 14080截面积
cm 2理论重量5025
1005030120
16080
90401803080
407050100
50200100
608040
150100
中国
眼镜杂志
60xor