trajectory in joint space的用法和樣例：
例句
- Its essential function is the perception of movement at the joint between the second antennal segment and the flagellum.
它的基本功能是感知觸角第二節和鞭節之間的關節運動。 - Metal surfaces form a passie oxide film, and with joint motion this film is repeatedly remoed and reformed, with gradual roughening of the surface.
金屬表面可形成一層鈍性氧化膜，該膜隨著關節運動而反覆剝落和形成，使表面逐漸變粗糙。
