sand-bed的用法和樣例：
例句
用作名詞 (n.)
- The resista nce decreases intensely when the slenderness ratio of the hot molding sand layer increases.
阻力隨干砂層長細比的增加而急劇減小。 - Quarternary sand stratum development, with surface run-off directly charging the underground water exists.
第四系砂層發育，地表水對地下水有直接補給關係。 - There are different opinions about thickness of sand mats for consolidation method.
摘要排水固結法需要的砂墊層厚度一直存在爭議。
