vertical split of rail head

例句：

1. 1. Therock face has a vertical split running throughit.
   岩石表面有一条垂直裂缝穿过。
2. 2. The roadwas damaged by a vertical split in theasphalt.
   路面因沥青的垂直裂缝而受损。
3. 3. The engineer carefully inspected thevertical split in the concrete beam.
   工程师仔细检查了混凝土梁中的垂直裂缝。