skew pantogrpah

例句：

1. 1.The skew pantograph was used to lift heavy objects.
   倾斜的圆锥形起重机被用来吊起重物。
2. 2. The unbalanced cone caused the machine to shake.
   不平衡的圆锥形物体导致机器震动。
3. 3.The uneven cone made it difficult for the workers to move around.
   不均匀的圆锥形物体让工人们难以移动。