transverse ripple mark

例句：

1. 1. The ancient stone carvingson the cliff face are a testament to the skill of the ancient craftsmen.
   悬崖上的古代石雕是古代工匠技艺的见证。
2. 2. The transverse ripplemark in the sedimentary rock indicates thatit was deposited by waves.
   沉积岩中的横向波纹表明它是由波浪沉积而成的。
3. 3. The paleontologists found thetransverse ripple mark on the fossilized shell, which helped them date theage of the shell.
   古生物学家在化石贝壳上发现了横向波纹，这帮助他们确定了贝壳的年龄。