宇航服还能保护他们免受有害辐射和快速移动的太空尘埃的伤害。

The suit also protects them from harmful radiation and fast-moving space dust.

这类手术需要恒定的X光，并且需要耗费很长时间才能完成。手术过程中放射出的X光会对医生造成有害辐射，在手术过程中必须要求医生穿上防护性背心。

This type of surgery involves constantx-rays and can take a long time to complete, exposing the physician toharmful radiation and mandating that they wear a heavy protective vestwhile operating.

月球不断地遭受有害辐射的袭击，多数辐射来自太阳风。

The moon is continuously being pelted by hazardous radiation.