The distribution of large-sized inclusions was non-homogeneous along thickness direction of slab, which contents of inner arc slab were obviously higher than those of outerarc slab.
铸坯中的大型夹杂物在厚度方向分布不均匀，内弧含量要明显高于外弧含量。
2
The bright red bowl, or arc, seen in this image traces the outer surface of the dense dust cloud encasing the young stars.
图中可见红色的弧形，它是一层致密气体的外层表面，这层气体则遮盖着那些年轻的恒星。
3
Where misalignment between the inner and outer rings exceeds 1 minute of arc, the action of the load on the flange changes considerably.