Trade Openness Degree的用法和樣例：
例句
- A degree of freedom is any quantity that can vary, such as a coordinate specifying a particle's location or one component of its velocity.
一個自由度是可以改變大小的任何量，例如標示某一粒子位置的座標，或粒子速度的某一分量。 - Because the stator consists of elastomer and piezoelectric ceramic, degree of freedom and physical field coupling problem need to be solved.
定子由彈性體和壓電陶瓷兩種材料組成，不僅存在自由度耦合問題，而且還存在不同物理場的耦合問題。
