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

> as lemmas

blue flat

blue flat n. English regional (midlands) (frequently in plural) a thin horizontal stratum of bluish ironstone (now rare).

ΚΠ

1799 R. Townson Tracts & Observ. Nat. Hist. & Physiol. 169 Blue Flat..alternating strata of brownish grey ironstone in dry clay; the ironstone in the upper part is in nodules.

1844 R. Kane Industr. Resources Ireland iv. 128 In Staffordshire..the usual ore is in thin flattened veins, bluish grey in colour, and is called blue-flat.

1914 Philos. Trans. (Royal Soc.) B. 204 414 The White and Blue Flats (ironstones) lie above the latter coal, and below the Top Coal.

extracted from blueadj.n.

as lemmas

单词	blue flat
释义	> as lemmas blue flat blue flat n. English regional (midlands) (frequently in plural) a thin horizontal stratum of bluish ironstone (now rare). ΚΠ 1799 R. Townson Tracts & Observ. Nat. Hist. & Physiol. 169 Blue Flat..alternating strata of brownish grey ironstone in dry clay; the ironstone in the upper part is in nodules. 1844 R. Kane Industr. Resources Ireland iv. 128 In Staffordshire..the usual ore is in thin flattened veins, bluish grey in colour, and is called blue-flat. 1914 Philos. Trans. (Royal Soc.) B. 204 414 The White and Blue Flats (ironstones) lie above the latter coal, and below the Top Coal. extracted from blueadj.n. < as lemmas
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