barchan的读音 barchan中文意思

英音  ['bɑ:kən] 
美音  ['bɑ:kən] 
n. 新月形沙丘
barchan 用法和例句
The dunes are formed from mobile barchan ( crescent-shaped ) dunes moving from left to right in this view .
这些沙丘呈移动的新月状,在图片中从左右排列。
A large barchan ( crescent-shaped ) dune in a region where some dunes have been observed shrinking over several years .
大型新月形(月牙形)沙丘在一个地区,那里的一些沙丘已经观察几年缩小。