argon中文

时间: 2024-10-07 01:00:06

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argon
/ 5B:ɡCn /

◙ noun
1. [mass noun] the chemical element of atomic number 18, an inert gaseous element of the noble gas group. Argon is the commonest noble gas, making up nearly one per cent of the earth's atmosphere[Symbol: Ar]
• （化学元素）氩[符号: Ar]
2. It is obtained by distilling liquid air, and is used in electric light bulbs to prolong the life of the filament, and also in arc welding and the growing of semiconductor crystals, where an inert atmosphere is important. It has no known chemical compounds

【语源】

1. late 19th cent.: from Greek, neuter of argos 'idle', from a- 'without' + ergon 'work'