Tungsten

(noun.) a heavy grey-white metallic element; the pure form is used mainly in electrical applications; it is found in several ores including wolframite and scheelite.

哈蒂编辑

• From another caveat, filed in 1889, we extract the following, which shows that he realized the value of tungsten also for this purpose. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• During the last four or five years lamps with filaments made from tantalum and tungsten have been produced and placed on the market with great success, and are now largely used. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Thus we have nickel, chromium, and tungsten steel. 威廉·亨利·杜利特. 世纪发明.

编辑:珀尔