Also, try not to set them up for failure by going too long without food or spending more then a couple of hours sitting in a car or plane seat.
同时,避免外出过长而不给他们准备食物或者数小时时间一直坐在汽车或飞机的座位数,这会令孩子们产生挫败感。
The Mohr-Coulomb model is based on plotting Mohr's circle for states of stress at failure in the plane of the maximum and minimum principal stresses.
莫尔-库仑模式基于莫尔圆来判断最大和最小主应力平面上的破坏应力状态。
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