On average,sea ice covered 14.4% of the studied area. First-year ice was dominant(99.7%~99.8%). Sea ice thickness ranged between 15 cm and 150 cm.是什么意思_On average,sea ice covered 14.4% of the studied area. First-year ice was dominant(99.7%~99.8%). Sea ice thickness ranged between 15 cm and 150 cm.在线翻译_英语_读音_用法_例句