根据文章第三段前四句Ultraviolet light causes chemicals called free radicals(自由基)to form within plant cells. They can destroy parts of plant. Free radicals also have damaging effects on human beings. Some of these effects like wrinkled skin can be seen.内容可知事情发生的先后顺序是:先是太阳...
Ultraviolet light causes chemicals called free radicals(自由基) to form within plant cells.They can destroy parts of plant.Free radicals also have damaging effects on human beings.Some of these effects like wrinkled skin can be seen.The damage is caused by the free radicals attacking cells in ...
[translate] aed io che ti ho creduto 并且我相信对您的I[translate] a等一下先,去吃个饭 And so on first, has a food[translate] ait is the light they can't be seen from afar. 它是他们不能从在远处被看见的光。[translate]
Ultraviolet light causes chemicals called free radicals(自由基)to form within plant cells. They can destroy parts of plant. Free radicals also have damaging effects on human beings. Some of these effects like wrinkled skin can be seen. The damage is caused by the free radicals...
Since then the idea of light pollution has been expanded to cover many ways that bright light has a negative impact on people and the environment. Light can be ultraviolet (we know that's bad for skin and eyes), infrared and visible. ...
Ultraviolet light from the sun can burn our eyes, and sometimes it can be painful. (Image credit: PonyWang via Getty Images) On a bright day, you might be particularly careful about wearing sunscreen to avoid sunburn. But is the skin the only part of the body that can develop this ...
a hotel in Hangzhou employed a robot named "Little Peanut" to deliver food to people under quarantine(隔离期).In Spain,robots are about to be used to test people for the coronavirus.Ultraviolet-light-disinfection (紫外线消毒) robots are also being widely used to clean hospital corridors and ...
UV glue tempered film is one type of screen protector that utilizes a drop of UV glue on the smartphone's screen before curing the glue using ultraviolet light. This installation method provides better adhesion than conventional solid glue tempered films, resulting in a more secure fit that is ...
aThough TiO2 has the disadvantage of not being activated by visible light, but by ultraviolet (UV) light, it is advantageous over the others in that it is chemically and biologically inert, photocatalytically stable, relatively easy to produce and to use, able to efficiently catalyze reactions,...
What more? The machine doesn’t make much noise, so it won’t affect your work and sleep. It eliminates the cumbersome steps of replacing the release film. And with the transparent cover, you can watch your prints while still block 99.9% of the ultraviolet light. ...