英语词汇“light metal”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

light metal n. a metal having a low relative density, (now) esp. aluminium, titanium, beryllium, or magnesium, or an alloy based on such a metal; (in later use also) a metallic element of relatively low atomic number.Some metals may be regarded as either light or heavy according to context. Cf. heavy metal at heavy adj.¹ 2c.

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1616 C. Richardson Workeman 61 The fruit of light metals, is aboue in the top of the earth: but those are richest, whose veine is hidden deepe.

1712 H. Curzon Universal Libr. II. 33 This [sc. tin] is a light Metal, and being touched with a red hot Iron, melts presently.

1842 London, Edinb., & Dublin Philos. Mag. 21 180 Dr. Kopp examines first the salts, and divides them into two groups,—salts of heavy metals and salts of light metals.

1936 R. P. Bell tr. N. J. Bjerrum Inorg. Chem. 213 The metals fall naturally into two groups: the light metals with densities below four, and the heavy metals with densities above seven.

1959 Times Rev. Industry Apr. 55/1 Reorganization within the light-metal industries.

1990 Rail 12 July 30/1 Vulcan Foundry avoided the use of heavy steel castings wherever possible preferring the use of glass fibre or light metal alloys where appropriate.

单词	light metal
释义	> as lemmas light metal light metal n. a metal having a low relative density, (now) esp. aluminium, titanium, beryllium, or magnesium, or an alloy based on such a metal; (in later use also) a metallic element of relatively low atomic number.Some metals may be regarded as either light or heavy according to context. Cf. heavy metal at heavy adj.¹ 2c. ΚΠ 1616 C. Richardson Workeman 61 The fruit of light metals, is aboue in the top of the earth: but those are richest, whose veine is hidden deepe. 1712 H. Curzon Universal Libr. II. 33 This [sc. tin] is a light Metal, and being touched with a red hot Iron, melts presently. 1842 London, Edinb., & Dublin Philos. Mag. 21 180 Dr. Kopp examines first the salts, and divides them into two groups,—salts of heavy metals and salts of light metals. 1936 R. P. Bell tr. N. J. Bjerrum Inorg. Chem. 213 The metals fall naturally into two groups: the light metals with densities below four, and the heavy metals with densities above seven. 1959 Times Rev. Industry Apr. 55/1 Reorganization within the light-metal industries. 1990 Rail 12 July 30/1 Vulcan Foundry avoided the use of heavy steel castings wherever possible preferring the use of glass fibre or light metal alloys where appropriate. extracted from lightadj.¹n.² < as lemmas
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