短语词组短语mortar fire controllers 观察员;察员;迫击炮部队的察看员;迫击炮部队的观察员incoming mortar fire 接踵而至的迫击炮fire mortar 耐火灰浆;耐火砂浆;防火泥浆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 返回 mortar fire