trough valley
短语词组
- fault trough submarine valley 斷槽海底穀;斷層槽海底穀
- trough shaped valley 槽形穀
- shoulder of trough valley 槽穀肩
- trough -shaped submarine valley 槽形海底穀
- trough valley then 槽穀
- karst trough valley then 巖溶槽穀
- karst trough valley 巖溶槽穀
- ancient valley trough 古溝槽 返回 trough valley