cobalt

英 ['k??b??lt; -?lt] 美['kob?lt]

低頻詞暢通詞匯

cobalt 鈷

來自德語Kobald，搗蛋的妖精，來自kobe,小屋，-hold，友好的，該詞義已不再使用，詞源同inclined。原為礦工行話，當銀礦含雜質過多時，礦工會咕噥一下這個詞，表示倒霉，后來科學證明這種雜質主要元素為鈷。

cobalt: cobalt: [17] German kobold means ‘goblin’: and in former times it was believed by German silver miners that impurities in the ore they were extracting, which lessened the value of the silver and even made them ill, were put there by these mischievous creatures. In fact these impurities were a silver-white metallic element, which was named kobalt after a Middle High German variant of kobold (the miners’ sickness was probably caused by the arsenic with which it occurred).
cobalt (n.): 1680s, from German kobold "household goblin," Harz Mountains silver miners' term for rock laced with arsenic and sulfur (so called because it degraded the ore and made the miners ill), from Middle High German kobe "hut, shed" + *holt "goblin," from hold "gracious, friendly," a euphemistic word for a troublesome being. The metallic element was extracted from this rock. It was known to Paracelsus, but discovery is usually credited to the Swede George Brandt (1733), who gave it the name. Extended to a blue color 1835 (a mineral containing it had been used as a blue coloring for glass since 16c.). Compare nickel.

1. They walked past stalls selling huge sprays of crimson, saffron and cobalt flowers.: 他們經過很多賣花的攤位，攤位上擺著大把大把的鮮花，有深紅色的，有金黃色的，還有深藍色的。

2. Sixty - five percent of the special heat resistant metal in a jet engine is made of cobalt.: 噴氣發動機中65%的特殊耐熱金屬材料是用鈷制造的.

4. But she was wearing the cobalt raiment of the Angel of Death.: 然而她卻身穿著死亡天使的鈷色衣裙.

5. Cobalt - based alloy is a kind of important materials used in elevated temperature.: 鈷基合金是一種重要的高溫材料.