| 释义 |
Definition of barchan in English: barchannoun ˈbɑːk(ə)nbɑrˈkɑn A crescent-shaped shifting sand dune, as found in the deserts of Turkestan. Example sentencesExamples - As he described them to the nomads of the Empty Quarter, they thought of the hard dark dunes found in their own desert called barchan dunes.
- The pace of an offensive in the desert depends to a great extent on how well the troops can overcome natural obstacles, especially barchans and solonchaks, rock outcrops covered by the enemy fire.
- Now a team publishing in the 23 December print issue of PRL reports it has generated miniature replicas of crescent-shaped dunes known as barchans in a water tank.
- Transverse ridges have a higher sand supply than barchans but also exist in unidirectional winds.
Origin Late 19th century: from Turkic barkhan. Definition of barchan in US English: barchannounbɑrˈkɑnbärˈkän A crescent-shaped shifting sand dune, concave on the leeward side. Example sentencesExamples - Transverse ridges have a higher sand supply than barchans but also exist in unidirectional winds.
- Now a team publishing in the 23 December print issue of PRL reports it has generated miniature replicas of crescent-shaped dunes known as barchans in a water tank.
- The pace of an offensive in the desert depends to a great extent on how well the troops can overcome natural obstacles, especially barchans and solonchaks, rock outcrops covered by the enemy fire.
- As he described them to the nomads of the Empty Quarter, they thought of the hard dark dunes found in their own desert called barchan dunes.
Origin Late 19th century: from Turkic barkhan. |