| 1. | The earth is a spacecraft too, our atmosphere acting as a shield against harmful radiation and space debris .
地球跟宇宙飞船完全一样，其周围的大气对有害的辐射和宇宙碎片起到防护作用。 |
| 2. | This apparatus produces harmful radiations
这种仪器会产生有害的幅射。 |
| 3. | This apparatus produces harmful radiations
这个装置产生有害的放射物。 |
| 4. | This apparatus produces harmful radiations
这种装置产生有害的辐射线。 |
| 5. | Protection of the eye against harmful radiation
有害辐射的眼睛防护 |
| 6. | Ionizing radiation is generally referred as harmful radiation
一般所指可引起伤害的辐射，就是电离辐射。 |
| 7. | Harmful radiations do not reach the earth because the atmosphere screens them out
有害的辐射由于得到大气屏蔽无法到达地球。 |
| 8. | This cascade of absorption and scattering stops harmful radiation from penetrating to body tissues
这一连串的吸收与散射，阻止了有害辐射穿透至人体的组织。 |
| 9. | The last mentioned , mostly used for engravings and in esotericism , is said to have special powers with which people can be protected from harmful radiation
黑碧玺时常被雕刻着神秘图腾，因为人们相信黑碧玺具有奇异的能量可帮助佩带者挡住有害能量。 |
| 10. | There are three reasons for this : first , after being crashed , the shape is not regular without definite strength . secondly , we do not know the magnetic pole . thirdly , the magnet taken from speaker is used specially for industry , and there are some harmful radiations in it possibly
形状不规整，不知道其强度有多大， 2不了解其磁极3广播喇叭磁块属于工业用磁，可能含有一些对人体有害的放射体。 |
