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

rock tar n. now rare petroleum; asphalt.

ΚΠ

1789 C. R. Hopson tr. J. C. Wiegleb Gen. Syst. Chem. ii. i. vi. 535 The sorts which are of a still greater consistence, and a higher colour, bear the name of Mineral- or Rock-Tar.

1804 J. Pinkerton Mod. Geogr. (new ed.) II. 282 Towards the Tigris there are pools of bitumen, or rock tar.

1916 Ohio Jrnl. Sci. 16 156 As the gray stone is hard and very solid, we do not find carbonaceous material other than as just stated, as it has no opportunity to seep through the rock and collect in masses of ‘rock tar’.

单词	rock tar
释义	> as lemmas rock tar rock tar n. now rare petroleum; asphalt. ΚΠ 1789 C. R. Hopson tr. J. C. Wiegleb Gen. Syst. Chem. ii. i. vi. 535 The sorts which are of a still greater consistence, and a higher colour, bear the name of Mineral- or Rock-Tar. 1804 J. Pinkerton Mod. Geogr. (new ed.) II. 282 Towards the Tigris there are pools of bitumen, or rock tar. 1916 Ohio Jrnl. Sci. 16 156 As the gray stone is hard and very solid, we do not find carbonaceous material other than as just stated, as it has no opportunity to seep through the rock and collect in masses of ‘rock tar’. extracted from rockn.¹ < as lemmas
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