effective height of column

例句：

1. 1.The engineer calculated the effective height of the column to ensure stability.
   工程师计算了柱子的有效高度以确保稳定性。
2. 2. The construction crew carefully measured the effective height of the column before lifting it.
   施工团队在提升柱子之前仔细测量了柱子的有效高度。
3. 3. The structural engineer determined the effective height of the column based on the load requirements.
   结构工程师根据载荷要求确定了柱子的有效高度。