primary internal force的用法和樣例：
例句
- The method can also lead to a much more reasonable structure by readjusting the internal force distribution of the dome.
同時(shí)，此種方法還有利于重新調整結構的內力分布，使結構整體受力合理。 - In this case, an internal muscular force is exerted within the man away from the wall.
在這種情況下，肌肉內力在人體中作用，使人遠離墻壁。
