1·Root exudates could activate heavy metals in soil, and enhance their bio-availability by dissolving, chelating, deoxidizing, decrease migration of heavy metals by fixating and inactivating.
根系分泌物可通过溶解、螯合、还原等作用活化土壤重金属，提高重金属的植物有效性，或固定和钝化重金属，降低重金属的移动性。
2·The black inactivating film is homogeneous, and the inactivated coating, test shows, has a no red rust period longer than 1000 hr in neutral salt fog.
所获得的黑色钝化膜外观均匀，镀层钝化后经中性盐雾试验(连续喷雾)出现红锈(基体腐蚀)的时间大于1000小时。