pack ice 浮冰 ; 块冰 ; 大块浮冰群 ; [海洋] 浮冰群
open pack ice 稀疏冰 ; 稀疏块冰 ; 开裂浮冰
very close pack ice 密集流冰 ; 非常密集漂流冰 ; 非常密集流冰群
very open pack ice [海洋] 全分离流冰 ; 非常稀疏漂流冰
loose pack ice 稀疏冰稀疏冰 ; 稀疏冰
close pack ice 密集流冰群 ; 密集块冰
pack ice barrier 浮冰防护提
compact pack ice 密集堆冰
N-UNCOUNT Pack ice is an area of ice that is floating on the sea. It is made up of pieces of ice that have been pushed together. 积冰
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