短語詞組短語overburden n pressure 積土壓力;表土層壓overburden pressure gradient 上覆壓力梯度initial form overburden pressure 起始超載壓力pseudo overburden pressure 視上覆巖層壓力overburden pressure correction 覆壓校正net overburden pressure 凈上覆壓力virginal overburden pressure 原始上覆壓力initial overburden pressure 起始超載壓力effective overburden pressure 有效上覆壓力 返回 overburden pressure