The poisonelement of ceramic ornamental materials and its changes of the limit allowed is described, and its research tendency and realistic state is summed up.
对陶瓷装饰材料中有毒害元素和其允许限定值的变迁进行了论述,归纳了其研究动向与现实状况。
2
It concerns a cat that is sealed inside a box for one hour along with a radioactive element and a vial of deadly poison.