Conclusions:( 1) Using the design method of block shielding faciocervical portals at isocentre, the individual portals can be designed according to the malignant invading ranges.

结论：（ 1）等中心面颈联合野设野原则可根据鼻咽癌侵犯的范围做个体化放疗设计。

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The sleeve has a dome-shaped shielding portion at one end, and a flange portion to be fixed to a modulator block at the other end.

该套有一个圆顶形屏蔽一端的部分，以及法兰一部分固定在另一端调制块。

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Besides of the light shielding function it can also nourish the skin and block the damages by color make-up.

这款产品牌富含稍微的遮瑕作用以外，更可以调养润泽肤质部位并隔绝彩妆对肤质部位引发的敏感损害。

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Shielding that would completely block those rays would be "meters thick" and too heavy to be used aboard a spacecraft, said Eddie Semones, a radiation health expert at NASA's Johnson Space Flight Center.

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