复数： spectroscopes

From this , about 1750 , the spectroscope was developed .

大约在1750年，据此发展了分光镜。

These composites are of interest to engineers in their own right , but when dr broomell and dr waite stuck ragworm jaws in an x-ray spectroscope they found no sign of mineralisation at all .

不过当布鲁梅尔博士跟瓦特博士将沙蚕颌齿放到分光仪里时，他们连一丁点的矿化迹象都没发现到。

It would be obvious to anyone who turned a spectroscope on earth , for example , that something odd was going on . Air that is 21 % oxygen , one of the most reactive elements in the periodic table , suggests the gas is being freshly minted-as it is , by photosynthesis .

任何人只要对照地球就会明白这个道理，有生命的地球存在独有的生态系统循环过程：氧气一直占空气的21%，而氧是元素周期表中最活跃的元素之一，这说明大气通过光合作用“吐故纳新。”