tungsten

名词 tungsten:

1. 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
   同义词：wolfram, W, atomic number 74

1. A coarse-grained granite, sometimes rich in rare elements such as uranium, tungsten, and tantalum.
   花岗伟晶岩一种有时富含铀、钨和钽等稀有元素的粗纹理花岗岩
2. Even with the air pumped out the bulb, the tungsten filament slowly vaporizes.
   即使灯泡中的空气被抽出，钨丝也会慢慢地蒸发。