belled pile的用法和樣例：
例句
- This paper introduces boring method of bored and bottom-enlarging mudjack pile in dry operation.
本文簡(jiǎn)單介紹了干作業(yè)鉆孔擴底樁的成孔處理方法。 - The current viewpoints on the modifying coefficient problem of end-bearing resistance of large diameter belled piles are different.
目前人們對大直徑擴底樁端阻力折減問(wèn)題有不同的看法。
