短語詞組短語glacial boulder ice 流動冰glacial -ice drilling 冰上鉆進glacial ice drilling 冰上鉆進glacial ice containing debris 含巖屑冰川冰glacial ice assignmenting 冰上鉆進glacial ice velocities 冰川流速glacial ice conduct 冰上鉆進glacial snow and ice 冰川雪冰bu -ried glacial ice 埋藏冰川冰 返回 glacial ice