This is achieved using magnetic tape coated in particles of barium ferrite .
这是通过使用覆盖了钡铁氧磁体微粒的磁带才得以实现的。
The bright blues are created by copper compounds , while the green colours are produced by barium nitrate .
明亮的蓝色是铜的化合物产生的，而绿颜色是由硝酸钡所产生。
Barium , which is commonly found in power plant waste and scrubber wastewater , has been linked to heart problems and diseases in other organs .
钡，是一种发电厂中常见的废弃污染物之一，可导致人的心脏和其他器官方面的疾病。
Aluminium produces the bright white colours , while antimony sulphide produces the glittering shimmers . The bright blues are created by copper compounds , while the green colours are produced by barium nitrate .
