d=3400mm=34dmD=3400mm+12mm×2=3424mm=34.24dmh=216mm=2.16dmV=(1/4)π(D^2-d^2)h=(1/4)×3.14×(34.24^2-34^2)×2.16=27.77 dm^3重量G=Vγ=27.77×7.8=216.6 kg
