arcing
常见例句
- The sun appears to move in an arc across the sky.
太陽看起來在天空以弧線運行。 - An early instrument for measuring altitude of celestial bodies, consisting of a90= graduated arc with a movable radius for measuring angles.
象限儀用來測量天躰緯度的一種早期工具,由一個有90度刻度的圓弧和一個用來測量角度的可移動的半逕搆成 返回 arcing