英语词汇“rock-boring”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

rock-boring

rock-boring adj. and n. (a) adj. that bores into rock; used for boring into rock; (b) n. the action or process of boring into rock.

ΚΠ

1831 Jrnl. Franklin Inst. 7 New Ser. 92 The rock boring tools are, first, a set of chisels, or punches; second, a riming bit.

1883 W. S. Gresley Gloss. Terms Coal Mining Carbonates, black imperfectly crystallised form of diamond used for rock boring.

1934 Isis 22 256 He [sc. Trevithick] also devised..steam drills for rock boring.

2005 D. R. Khanna & P. R. Yadav Biol. Echinodermata vii. 272 The main rock-boring urchins are Psammechinus miliaris and Paracentrotus lividus.

extracted from rockn.¹

as lemmas

单词	rock-boring
释义	> as lemmas rock-boring rock-boring adj. and n. (a) adj. that bores into rock; used for boring into rock; (b) n. the action or process of boring into rock. ΚΠ 1831 Jrnl. Franklin Inst. 7 New Ser. 92 The rock boring tools are, first, a set of chisels, or punches; second, a riming bit. 1883 W. S. Gresley Gloss. Terms Coal Mining Carbonates, black imperfectly crystallised form of diamond used for rock boring. 1934 Isis 22 256 He [sc. Trevithick] also devised..steam drills for rock boring. 2005 D. R. Khanna & P. R. Yadav Biol. Echinodermata vii. 272 The main rock-boring urchins are Psammechinus miliaris and Paracentrotus lividus. extracted from rockn.¹ < as lemmas
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