Month: 四月 2018

鎢, which was first discovered about 350 年前, 出名係大自然中最艱難嘅元素之一. 呢個係極度密集，而且只係唔可能融化. 佢嘅實力同耐用性已經幫到人哋搵到各種用途. Here are some other interesting facts about tungsten that you… 閱讀更多 »