英语词汇“jack rib”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

jack rib

jack rib n. Architecture and Building any rib (rib n.¹ 7b) which is shorter than the others in the same structure; cf. jack timber n.

ΚΠ

1763 W. Pain Builder's Pocket-treasure 62 The Mould for the Jack Ribs of the Groin.

1823 P. Nicholson New Pract. Builder 110 In the construction of groins,..the ribs that are shorter than the whole width are termed Jack-ribs.

1909 Carpentry & Building June 199/1 The lengths and profiles of the jack ribs R R are found by drawing lines from their intersections.

1998 C. M. Harris Amer. Archit. 188 Jack rib, any rib in a framed arch or dome that is shorter than the other ribs.

extracted from Jackn.²

as lemmas

单词	jack rib
释义	> as lemmas jack rib jack rib n. Architecture and Building any rib (rib n.¹ 7b) which is shorter than the others in the same structure; cf. jack timber n. ΚΠ 1763 W. Pain Builder's Pocket-treasure 62 The Mould for the Jack Ribs of the Groin. 1823 P. Nicholson New Pract. Builder 110 In the construction of groins,..the ribs that are shorter than the whole width are termed Jack-ribs. 1909 Carpentry & Building June 199/1 The lengths and profiles of the jack ribs R R are found by drawing lines from their intersections. 1998 C. M. Harris Amer. Archit. 188 Jack rib, any rib in a framed arch or dome that is shorter than the other ribs. extracted from Jackn.² < as lemmas
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