1. His experiments were the first clear demonstration of the role of a virus in one type of malignant tumor. 他的实验首次清晰地证明了病毒在一种恶性肿瘤中的作用。
2. As observed with the chickens, the filterable agent, a virus, could seldom be recovered from the malignant tumor which it had induced. 在鸡身上观察到,一种叫滤过性病原体的病毒,很少能从它诱发的恶性肿瘤中恢复过来。
3. He was died of a malignant tumor. 他死于恶性肿瘤。
4. He knew the mass in his father's pancreas was a malignant tumor. 他知道父亲胰腺的肿块是个恶性肿瘤。
5. The growth of malignant tumor is dependent on angiogenesis. 恶性肿瘤的生长具有血管生成依赖性。