求翻译：1、血浆交换疗法：通过去除病人血浆，达到去除血浆中所含免疫复合物、自身抗体等，后输入正常血浆。效果显著，但难持久，且价格昂贵，适用于急重型病例。是什么意思？

1, plasma exchange therapy: the patient by removing the plasma, to remove the plasma contained in immune complexes, antibodies, etc., and enter the normal plasma. Results are obvious, but it is difficult lasting, and expensive, heavy for urgent cases.

1, plasma exchange therapy: by removing 970,523 patients, and in blood plasma that is contained in its own immunization compounds, such as antibodies, then input normal plasma. But it is difficult to produce a significant and lasting, and expensive, applied to a heavy cases.

1st, blood plasma exchange therapy: Through removes the patient blood plasma, achieved in the elimination blood plasma contains the immunity compound, own immune body and so on, latter inputs the normal blood plasma.The effect is remarkable, but difficult lasting, also the price is expensive, is sui

1, plasma exchange therapy: by removing plasma, to removal of plasma containing immune complexes, autoantibodies, after the normal plasma. Effective, lasting, and expensive, suitable for acute and severe cases.

1, plasma exchange therapy: the patient by removing the plasma, to remove the plasma contained in immune complexes, antibodies, etc., and enter the normal plasma. Results are obvious, but it is difficult lasting, and expensive, heavy for urgent cases.