自1960年，梅曼生产降生界首台红宝石固态激光器，激光技术之后开始较慢渗透到物理、化学、生物医疗等众多研究领域，进而对大众日常生活的许多方面带给深刻影响。

The London Taxi Company has set out its vision of the future for the black cab and it involves green technology, exports to cities across the world and dedicate...

Writing for the BBC, the novelist Will Self recently claimed that young people are becoming more and more nostalgic. The Internet has a lot to do with this, he ...

很多人有疑惑，医院不会拒绝一些患者手术前要灌肠，有人实在没有适当，知道是不必要吗？