【日本《原子力工业》1980年3月号报道】据美国1979年11月出版的《材料工程杂志》所发表的一则消息说,最近新合成了一种比过去的玻璃更硬、结晶温度更高的玻璃。过去的含铁耐火玻璃,在约670K的温 [Japan’s “Atomic Power Industry,” March 1980 report] According to a report published in the “Journal of Materials Engineering” published by the United States in November 1979, recently a new composition of a harder, more crystalline temperature than the previous glass High glass. Past iron-containing fire-resistant glass, at a temperature of about 670K