radiations造句
This apparatus produces harmful
radiations.
这种仪器会产生有害的辐射物.
Most metallic and some nonmetallic elements will emit characteristic
radiations.
大多数金属和某些非金属元素都会发出特征的射线.
Our knowledge regarding the effects of ionizing
radiations is still meagre.
我们关于电离辐射效应的知识仍很不足.