harmful radiation造句怎麼寫

L the outer layers of space suit protect against harmful radiation from the Sun and bullet-fast particles of space dust called micrometeoroids.

This apparatus produces harmful radiations.

Safe and harmless: fiber cement flat without any harmful radiation, theprocess of using no harmful dust, and therefore can be used in a variety of buildings.

Green lighting products, don't contain mercury, lead, no harmful radiation.

In the firstone. black clouds of exhaust fume are emitted from a highchimney. to thes trend one. a signal tower stands instead ofthe ugly chimney. sending out invisible harmful radiation.