long arm jack

例句：

1. 1.We used a long arm jack to lift the heavy box off the floor.
   我们用长臂千斤顶把沉重的箱子从地板上抬起来。
2. 2. The construction crew used a long arm jack to move the heavy beams into place.
   建筑工人使用长臂千斤顶把沉重的梁移动到位。
3. 3.The long arm jack was essential for the demolition work.
   长臂千斤顶对于拆除工作至关重要。