In engineering design, the natural axis is located assumably the extreme row which is directed by the moment.
工程设计中,通常认为普通螺栓群弯矩受拉时,中和轴在弯矩指向一侧最外排螺栓处。
2
The developping trend is discussed assumably in the end. The pollution of automobile epilogue has been doing bad harm to our living space step by step.