因为作为油画传媒的中国早期留学生，学习的就是直接画法。
Being the media of the oil paintings, the early Chinese foreign students learned the Alia Prima technique.
基于此，采用一种内力图的简便画法，避免复杂的计算，通过观察直接画出。
Based on this, we consider a map of the internal forces simple painting and avoid complex calculations, through direct observation of paint.
总结了根据外力的符号直接绘制内力图的简单实用的绘制方法，这种画法简化了绘制过程，提高了绘图速度；
With the summary of simplified and practical designing approaches to draw internal force figures in accordance with notations in internal forces, which simplified drawing process and improved speed.
总结了根据外力的符号直接绘制内力图的简单实用的绘制方法，这种画法简化了绘制过程，提高了绘图速度；
With the summary of simplified and practical designing approaches to draw internal force figures in accordance with notations in internal forces, which simplified drawing process and improved speed.
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