试验证明，稀土具有重量活性，能刺激生命活力，在生物学上有广泛的应用。
Tests proved that rare earth has physiological activeness and can stimulate vigour of organism.
如果在供试品的制备过程中使用了表面活性剂， 必须证明其不会对微生物产生毒性并且可与 灭活剂兼容。
If surface-active substances are used for sample preparation, their absence of toxicity for micro-organisms and their compatibility with inactivators used must be demonstrated.
实验结果证明BMP - 2具有良好的生物诱导活性。
Experimental results prove that BMP - 2 with good biological induction activity.
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