invisible radiation

基本解释

In 1937, the first radio telescope was built, enabling astronomers to detect otherwise invisible radiation from stars.
1937年，第一架射电望远镜落成，让天文学家能够检测到从恒星发射的不可见辐射。
They wear white, full-body jumpsuits with snug-fitting hoods that provide scant protection from the invisible radiation sleeting through their bodies.
他们穿着带有头罩的白色全体连身衣，以勉强保护他们不受无形核辐射的危害。
Central filamentsof the dusty clouds glow with a faint reddish photoluminesence as some dust grains effectively convert the star's invisible ultraviolet radiation to visible red light.
在尘埃云中心的细丝发出微弱的红色荧光，这是由于一些尘埃微粒能有效地将恒星发出的不可见紫外线转换成可见的红光。

Radiation for example, is invisible, has no smell or odor, while it is extremely deadly for the humans.
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