W.

汉语翻译

英语解释：

名词 w.:

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：tungsten, wolfram, W, atomic number 74
2. the cardinal compass point that is a 270 degrees
   同义词：west, due west, westward, W
3. a unit of power equal to 1 joule per second; the power dissipated by a current of 1 ampere flowing across a resistance of 1 ohm
   同义词：watt, W
4. the 23rd letter of the Roman alphabet
   同义词：W, letter w, double-u

详细解释：