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

单词	head-block
释义	head-block\|ˈhɛdblɒk\| †1. A log put at the back of the chimney to keep the fire in by night: cf. head-brand in head n.¹ 74. 1642Fuller Holy & Prof. St. v. xix. 439 These Nether⁓lands being like the head-block in the chimney, where the fire of warre is alwayes kept in (though out every where else). 2. In a saw-mill: The device for holding the log upon the carriage, while it is sawn. 1864Webster, Head-block (Saw-mill), the movable cross⁓piece of a carriage on which the log rests.1878Sci. Amer. XXXVIII. 291 An improved head block..for saw mills. 3. The piece which connects the wheel-plate or ‘fifth wheel’ of a carriage with the fore-body. 1875in Knight Dict. Mech.1884Ibid. Suppl., Head Block Plate (Carriage), an iron resting on the fore-axle and supporting the head block. 4. (See quot. 1905.) 1853Trans. Mich. Agric. Soc. IV. 35 G. S. Snyder, Lancaster O. improved head block for setting logs on saw mills.1905Terms Forestry & Logging 39 Head block, the log placed under the front end of the skids in a skid⁓way to raise them to the desired height.
随便看	self-contempt self-content self-contented self-contradiction self-control self-convicted self-conviction self-created self-criticism self-cultivation self-culture self-dead self-death self-deceit self-deceived self-deception self-defence self-defended self-defensive self-delight self-deliverance self-delivery self-deluded self-delusion self-denial

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