Tankshells are considered the single layer and the reinforce iron plates are ignored in creating the model.
该模型将箱壳视为单层钢板，忽略了一些加强角铁等加强件。
2
Reasonably defining reinforcing rings for metal tanks is important in avoiding less stability of tankshells so as to guarantee safe operation.
金属油罐加强圈的合理确定，对防止油罐罐壁失稳，保证油罐安全生产具有重要作用。
3
Two Israeli tankshells struck the school in Jabaliya refugee camp, spraying shrapnel on people inside and outside the building, according to news agency reports.