爱词霸英语   汉语   手机版   软件版下载 | English
每日一句:正在加载...
1.In 1895, Wilhelm Roentgen accidentally discovered that a cathode-ray tube could make a sheet of paper coated with barium platinocyanide glow, even when the tube and the paper were in separate rooms.
1895年，威廉·伦琴偶然发现阴极射线管能使涂有一层氰亚铂酸盐钡的薄相纸发光，甚至当阴极射线管和相纸分别放在不同的房间时也能发光。收藏指正
2.a colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts.
无色无味的气体，在真空管中能发出红光，六种惰性气体之一，在空气中含量较少。收藏指正
尝试查询
汉英释义