Warning: file_put_contents(): Only 0 of 6269 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/69228.com/index.php on line 55 alluvial fan英英字典_alluvial fan剑桥英语解释_alluvial fan柯林斯英文解释_魏碑心思朗文词典
1. N a fan-shaped accumulation of silt, sand, gravel, and boulders deposited by fast-flowing mountain rivers when they reach flatter land 沖積錐; 湍急的河水到達平地後形成的由泥、沙、石、卵組成的錐形沉積物