英语词汇“head-tin”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

head-tin

† head-tin n. Mining Obsolete the purest tin ore obtained during a process of mechanical concentration; cf. sense 52 and heading n. 15.

ΚΠ

1673 J. Ray Coll. Eng. Words 122 The head tin passes to the wreck, where they work it with a wooden rake in Vessels.

1753 Chambers's Cycl. Suppl. (at cited word) When the [tin] ore has been pounded and twice washed, that part of it which lies uppermost or makes the surface of the mass in the tub, is called the Head-tin.

1858–9 J. Weale Rudim. Dict. Terms Archit. (ed. 2) 221/2 Head-tin, a preparation of tin-ore towards the fitting it for working into metal.

extracted from headn.¹

as lemmas

单词	head-tin
释义	> as lemmas head-tin † head-tin n. Mining Obsolete the purest tin ore obtained during a process of mechanical concentration; cf. sense 52 and heading n. 15. ΚΠ 1673 J. Ray Coll. Eng. Words 122 The head tin passes to the wreck, where they work it with a wooden rake in Vessels. 1753 Chambers's Cycl. Suppl. (at cited word) When the [tin] ore has been pounded and twice washed, that part of it which lies uppermost or makes the surface of the mass in the tub, is called the Head-tin. 1858–9 J. Weale Rudim. Dict. Terms Archit. (ed. 2) 221/2 Head-tin, a preparation of tin-ore towards the fitting it for working into metal. extracted from headn.¹ < as lemmas
随便看	claw-lever claw-like claw-mark claw-poll claw-scratch claw-screw claw-table claw-tailed claw-tipped claw-wound claw-wrench clawandball clawback clawbacks clawbalk clawbar clawchisel clawed clawed back clawer clawers clawfeet clawfoot clawfooted clawfoots