1 basis of preparation<br>2 parameters and layout of aluminum truss<br>3 load value<br>4 load combination<br>Calculation of 5 3M 450 * 450 aluminum alloy small truss<br>6 calculation of horizontal positioning system of upper camera<br>Calculation of 7 24m 450 * 450 aluminum alloy small truss<br>Calculation of 8 6m 450 * 710 aluminum alloy large truss<br>9 calculation of electric chain hoist and upper anchor point
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