halogen
美音:[´hælədʒən
]
英音:[´hælədʒən
]
n. 卤素
难易程度:
halogen为短语/超纲词汇
词形变化:
形容词:halogenous
halogen
/'hælədʒən; `hælədʒən/
n (chemistry 化) any of the chemical elements fluorine, chlorine, bromine and astatine which form salts by simple union with a metal 卤素
*[attrib 作定语] halogen lamps/headlights 卤素灯[前灯].
n (chemistry 化) any of the chemical elements fluorine, chlorine, bromine and astatine which form salts by simple union with a metal 卤素
*[attrib 作定语] halogen lamps/headlights 卤素灯[前灯].
halogen
n[U]
[Date: 1800-1900; Language: Swedish;Origin:Greek hals 'salt']
a halogen light uses halogen gas to produce light
halogen bulb/lamp/light etc
one of a group of five simple chemical substances that make compounds easily
[Date: 1800-1900; Language: Swedish;Origin:Greek hals 'salt']
a halogen light uses halogen gas to produce light
halogen bulb/lamp/light etc
one of a group of five simple chemical substances that make compounds easily
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