access gap的用法和樣例：
例句
- The clear span of a bridge is the gap from the near edge of the next.
橋梁的凈跨，是自一個(gè)橋墩的近側邊到相鄰橋墩近側邊之間的間距。 - The ion conductance between the two electrodes changes with the gap between the micro pipette tip and the sample surface.
由于微滴管與基板間離子電導隨兩者間距減少而減小，采用反饋系統可保持這一間距恒定。
