Spectroscopy accounts for half of all instrument sales and is the largest overall category of instruments, as the Alpert & Suftcliffe study shows.

• 正如阿尔勃特及萨特克利夫调查所的调查显示的那样,光谱仪占有全部仪器销售额的一半,并成为所有仪器种类中最大宗的一种商品。