| 单词 | angle of repose |
| 释义 | > as lemmasangle of repose angle of repose n. Mechanics the greatest angle between two movable planes in contact which is consistent with their stability; spec. the maximum angle to the horizontal at which the sloping side of a pile of loose material will remain stable; the maximum angle of the steepest slope on which a loose object will rest without rolling down under the influence of gravity (cf. angle of friction n. at Phrases 2d). ΘΚΠ society > occupation and work > materials > raw material > earth > [noun] > angle at which earth will permanently stand angle of repose1807 society > occupation and work > industry > building or constructing > disposition of stones or bricks > [noun] > single layer on same level > specific angle of angle of repose1807 1807 Jrnl. Nat. Philos. Dec. 244 The most convenient way of estimating its magnitude is to incline the [two brick] surfaces to the horizon [forming an inverted V], until they begin to slide on each other. The angle at which this happens..may with propriety be called the angle of repose. 1833 J. C. Loudon Encycl. Cottage Archit. §805 Where the courses lie at an angle of about thirty-two degrees, or what is called the angle of repose for masonry. 1912 P. A. Amos Processes of Flour Manuf. x. 73 The ‘angle of repose’ of wheat is 30°. 1997 A. M. Jones Quiet Place of Violence i. x. 58 On these wet, steep hills, if moisture overextends the angle of repose, pieces of gumbo can roll and build like large snowballs. < as lemmas |
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