annular saw的用法和樣例：
例句
- Circular saw for the octagonal-shaped tower, highshi san ceng , bottom-up on each floor for the law of diminishing.
塔身為八角圓鋸形，高十三層，由下而上每層作規律遞減。 - As you lift the saw, the spring-tensioned telescoping guard will automatically close under the blade.
抬起圓鋸后，彈簧繃緊壓入的保護罩會自動在鋸片下方關閉。
