在第ii部份我们将学习在游离辐射与生物介质相互作用时如何预期其结果。
In Part II we'll look at the consequences we can expect when ionizing radiation interacts with biological material.
若你有勇气，也可以提出有许多证据指出低程度的游离辐射实际上对你是有益的。
If you feel daring you could also mention that a good deal of evidence suggests that low levels of ionizing radiation are actually good for you.
本课程是介绍游离辐射的基本特性，与其在医学、工业、科学、与环境研究上使用的介绍。
This course is an introduction to basic properties of ionizing radiations and their uses in medicine, industry, science, and environmental studies.
当皮肤暴露在阳光下，紫外线辐射会引发游离原子团的形成，转而破坏皮肤细胞中的DNA， 引起肿瘤的生长。
When the skin is exposed to sunlight, the radiation triggers the formation of free radicals which, in turn, damages the DNA in skin cells, causing tumours to grow.
以微波对水泥制品辐射，使得水泥制品内的极性物质的游离态离子发生快速运动，使得水泥快速初凝。
Adopting the microwave to radiate the cement product enables free ions of polar substances in the cement product to move rapidly, thus leading to rapid initial setting of the cement.
以微波对水泥制品辐射，使得水泥制品内的极性物质的游离态离子发生快速运动，使得水泥快速初凝。
Adopting the microwave to radiate the cement product enables free ions of polar substances in the cement product to move rapidly, thus leading to rapid initial setting of the cement.
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