| 1. | Normal cells show a finite life span .
正常细胞显示有限的生命期。 |
| 2. | The cancer cells divide much more rapidly than the normal cells .
癌细胞的分裂比正常细胞快得多。 |
| 3. | A normal cell produces only a minute amount of its own cholesterol .
一个正常细胞只为自己制造极微量的胆固醇。 |
| 4. | Normal cells show an extraordinarily precise regulation of their growth .
正常细胞对它们的生长有着极其严密的控制。 |
| 5. | Fortunately, the tumor cells are more susceptible to the drugs than normal cells .
幸运的是，癌细胞比正常细胞更容易受到药物的影响。 |
| 6. | Most important is that it is produced by the body; moderate doses of it are not harmful to normal body cells .
最主要之点是，因为它是机体本身产生的物质，所以适当的剂量对于机体的正常细胞无害。 |
| 7. | Established that proto - oncogenes play important roles in normal cellular control
确立原癌基因在正常细胞调控中的重要作用 |
| 8. | The researchers began by removing two genes from a vaccinia virus that are necessary for its growth in normal cells
研究人员们首先将痘苗病毒中在正常细胞中生长所必须的两个基因去除。 |
| 9. | Xiap is also known to be highly active in cancer cells , but it is found in relatively low levels in healthy cells
Xiap在肿瘤细胞中高活性广为所知，但是它在正常细胞中有相对低水平表达。 |
| 10. | The spatial resolution of the technique meant that he was able to distinguish cancerous and normal cells in his sample , he says
该项技术的空间分辨率意味着他可以区分样品中的癌细胞和正常细胞，他说。 |
