英语词汇“butterfly block”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

butterfly block

butterfly block n. Nautical (now rare) a small block consisting of two wings, each wing containing a wheel for a chain to pass over.

ΘΚΠ

society > travel > travel by water > vessel, ship, or boat > equipment of vessel > tackle or purchase > [noun] > system of) pulley(s) > specific forms of block

snap-block1626

tail-block1769

notch-block1788

strap-bound-block1794

monkey1834

strap-block1875

butterfly block1882

1882 G. S. Nares Seamanship (ed. 6) 41 Rollers or butterfly blocks are fitted to bands round the yard.

1933 C. N. Longridge ‘Cutty Sark’ II. vii. 148 In the later ships, the two blocks were therefore replaced by a single butterfly block with two sheaves, which was shackled to an eye under the central sling band.

extracted from butterflyn.

as lemmas

单词	butterfly block
释义	> as lemmas butterfly block butterfly block n. Nautical (now rare) a small block consisting of two wings, each wing containing a wheel for a chain to pass over. ΘΚΠ society > travel > travel by water > vessel, ship, or boat > equipment of vessel > tackle or purchase > [noun] > system of) pulley(s) > specific forms of block snap-block1626 tail-block1769 notch-block1788 strap-bound-block1794 monkey1834 strap-block1875 butterfly block1882 1882 G. S. Nares Seamanship (ed. 6) 41 Rollers or butterfly blocks are fitted to bands round the yard. 1933 C. N. Longridge ‘Cutty Sark’ II. vii. 148 In the later ships, the two blocks were therefore replaced by a single butterfly block with two sheaves, which was shackled to an eye under the central sling band. extracted from butterflyn. < as lemmas
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