| 单词 |
orthotropic |
| 释义 |
orthotropic, a. Bot.|ɔːθəʊˈtrɒpɪk|
[f. as orthotrop-ous + -ic.]
1. Growing vertically upwards or downwards, as a root or stem.
1886Vines Physiol. Plants xvii. 425 Sachs has observed that the young primary shoot of Tropæolum majus is at first orthotropic. Ibid., The primary shoot of the seedling [of ivy] is..at first orthotropic, and radial.
2. Having three mutually perpendicular planes of elastic symmetry at each point.
1943Q. Appl. Math. I. 128 Another important special case is that of an orthotropic elliptic plate bent by a linear load, for which the solution is new. 1963P. Fern tr. Lekhnitskii's Theory Elasticity of Anisotropic Elastic Body i. 21 Delta-wood and plywood can be considered as homogeneous and orthotropic in the first approximation. 1971P. J. Dowling in K. C. Rockey et al. Devel. in Bridge Design & Constr. 557 After the war the orthotropic deck bridge was developed and this form of bridge has now become a common form of construction..where saving in weight or depth of construction are important parameters. 1975Cusens & Pama Bridge Deck Anal. i. 18 For long-span steel bridges, the deck is frequently a plate with longitudinal stiffeners (stringers). This form of construction is known to steel designers as an orthotropic plate. |
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