短语词组短语fire proofing mortar 耐火砂浆英语fire clay mortar 耐火泥灰浆;耐火泥浆fire proof mortar 耐火砂浆fire -resistant mortar 耐火砂浆Mortar Fire 迫击炮mortar fire controllers 观察员;察员;迫击炮部队的观察员;迫击炮部队的察看员incoming mortar fire 接踵而至的迫击炮 返回 fire mortar